bluuebunny/crossref_metadata_2025 huggingface dataset:
Protein–Protein Interactions
Authors: Ubbink Marcellus , Di Savino Antonella
Published: August 2018

Paramagnetic NMR methods are excellently suited for the study of protein–protein complexes in solution. Intermolecular pseudocontact shifts (PCSs), residual dipolar couplings (RDCs) and paramagnetic relaxations enhancements (PREs) can be used, ideally in combination, for docking proteins and determining their orientation in the complex. PCSs can be used for breaking the structure symmetry in dimer complexes. PCSs also can be applied to detect structural differences in proteins and protein complexes in solution in comparison to crystal structures. RDCs are sensitive to the degree of alignment of both partners in a protein complex and are thus very useful to detect dynamics within complexes. PREs can detect states in which nuclei approach a paramagnetic centre closely, even if it exists only for a small fraction of the time. Thus, PREs are used to detect minor states and characterize ensembles. PRE studies have been the foundation for characterizing encounter states and the process of protein complex formation. In weak complexes, such as are found in electron transfer chains, proteins can be in an encounter state for a large fraction of the complex lifetime. Paramagnetic NMR tools thus have found many applications for studying protein complexes, and more may be on the horizon.
Solid-state NMR of Paramagnetic Proteins
Authors: Bertarello Andrea , Pintacuda Guido
Published: August 2018

In this chapter we will briefly summarize how the presence of paramagnetic centers affects the NMR properties of paramagnetic proteins in the solid state and describe how the experimental strategies used in solution should be modified to characterize these systems. In parallel, we will provide some case studies from the recent literature that highlight the tremendous potential of solid-state NMR for the characterization of paramagnetic proteins.
Relaxometry and Contrast Agents
Authors: Aime Silvio , Gianolio Eliana , Viale Alessandra
Published: August 2018

The perturbation on the relaxation of solvent water protons induced by the presence of paramagnetic metal-containing systems has been exploited for the design of contrast agents in magnetic resonance imaging applications. Complexes of Gd3+ ions were identified early as the candidates of choice and several, highly stable, Gd-containing contrast agents entered into clinical practice two to three decades ago. Overall, the relationships between the structure and dynamics of paramagnetic metal complexes and the determinants of the proton relaxation enhancement have been well defined. On this basis a number of Gd-containing complexes have been synthetized and tested. Besides the currently used procedures devoted to visualizing tumor perfusion or abnormalities in organ function, Gd-containing contrast agents have found application in quantitative assessments such as DCE-MRI (dynamic contrast enhanced-MRI). At preclinical level, a number of paramagnetic systems have already been proposed as targeting agents of overregulated receptors/transporters or as responsive agents to tissue microenvironment parameters. These studies pave the way to molecular imaging studies with MRI modality.
Maceration mediated liquid–liquid extraction of conjugated phenolics from spent black tea leaves extraction of non-extractable phenolics
Authors: Mukhtar Bushra , Mushtaq Muhammad , Akram Sumia , Adnan Ahmad
Published: August 2018

This paper puts forward the application of non-ionic surfactant based maceration to mediate the liberation of conjugated phenolics from of spent black tea leaves (SBTL).
Towards the development of chitosan nanoparticles for plutonium pulmonary decorporation
Authors: Léost Laurane , Roques Jérôme , Van Der Meeren Anne , Vincent Luc , Sbirrazzuoli Nicolas , Hennig Christoph , Rossberg André , Aupiais Jean , Pagnotta Sophie , Den Auwer Christophe , Di Giorgio Christophe
Published: August 2018

N-Trimethylchitosan based nanoparticles – pentamethylenephosphonic acid are proposed as a new class of decorporation agents in the case of plutonium pulmonary contamination.
Low valent Al(ii)–Al(ii) catalysts as highly active ε-caprolactone polymerization catalysts: indication of metal cooperativity through DFT studies
Authors: Kazarina Olga V. , Gourlaouen Christophe , Karmazin Lydia , Morozov Alexander G. , Fedushkin Igor L. , Dagorne Samuel
Published: August 2018

A dinuclear Al(ii)–Al(ii) species acts as a highly effective ROP catalyst of ε-caprolactone at room temperature, with a DFT computed ROP mechanism indicative of metal cooperativity.
Urban haze and photovoltaics
Authors: Peters I. M. , Karthik S. , Liu H. , Buonassisi T. , Nobre A.
Published: August 2018

Urban haze is a multifaceted threat.
Fluoride graphdiyne as a free-standing electrode displaying ultra-stable and extraordinary high Li storage performance
Authors: He Jianjiang , Wang Ning , Yang Ze , Shen Xiangyan , Wang Kun , Huang Changshui , Yi Yuanping , Tu Zeyi , Li Yuliang
Published: August 2018

Bottom-up fabrication of fluoride graphdiyne offers a versatile approach to the rational design of ultra-stable flexible 2D electrode materials.
Egg consumption may improve factors associated with glycemic control and insulin sensitivity in adults with pre- and type II diabetes
Authors: Pourafshar Shirin , Akhavan Neda S. , George Kelli S. , Foley Elizabeth M. , Johnson Sarah A. , Keshavarz Behnam , Navaei Negin , Davoudi Anis , Clark Elizabeth A. , Arjmandi Bahram H.
Published: August 2018

Daily consumption of one large egg for 12 weeks improves fasting blood glucose, ATP-binding cassette protein family A1, and apolipoprotein A1 in overweight or obese individuals with pre- and type II diabetes.
A zwitterionic near-infrared dye linked TrkC targeting agent for imaging metastatic breast cancer
Authors: Yang Zhen , Usama Syed Muhammad , Li Feng , Burgess Kevin , Li Zheng
Published: August 2018

A probe that conjugated a TrkC targeting agent with a zwitterionic near-infrared dye was reported for imaging of metastatic breast cancer.
Affibody-functionalized Ag2S quantum dots for photoacoustic imaging of epidermal growth factor receptor overexpressed tumors
Authors: Zhang Ying , Zhao Ning , Qin Yeshan , Wu Fengxia , Xu Zhihua , Lan Tian , Cheng Zhen , Zhao Ping , Liu Hongguang
Published: August 2018

Photoacoustic imaging (PAI) is a new and attractive imaging modality, and it has strong potential for application in the early detection of tumors through the use of optically absorbing targeted contrast agents.
One-step fabrication of bimetallic PtNi mesoporous nanospheres as an efficient catalyst for the oxygen reduction reaction
Authors: Wang Hongjing , Yu Hongjie , Yin Shuli , Li Yinghao , Xue Hairong , Li Xiaonian , Xu You , Wang Liang
Published: August 2018

PtNi mesoporous nanospheres are fabricated by a one-step method in aqueous solution and used as an active catalyst for the oxygen reduction reaction.
Palladium-catalyzed oxidative C–H/C–H cross-coupling of imidazopyridines with azoles
Authors: Guo Tao , Liang Jing-Jing , Yang Song , Chen Huan , Fu Ya-Ning , Han Shu-Lei , Zhao Yun-Hui
Published: August 2018

A palladium-catalyzed oxidative C–H/C–H cross-coupling of imidazopyridines with azoles using air as the oxidant has been developed.
“Choose-a-size” control in the synthesis of sucrose based urea and thiourea macrocycles
Authors: Łęczycka-Wilk Katarzyna , Ulatowski Filip , Cmoch Piotr , Jarosz Sławomir
Published: August 2018

High yield synthesis of either monomeric or dimeric sucrose-based macrocycles is just a matter of choice – flow or batch synthesis.
Quinoline–galactose hybrids bind selectively with high affinity to a galectin-8 N-terminal domain
Authors: Pal Kumar Bhaskar , Mahanti Mukul , Huang Xiaoli , Persson Stella , Sundin Anders P. , Zetterberg Fredrik R. , Oredsson Stina , Leffler Hakon , Nilsson Ulf J.
Published: August 2018

Straightforward methods to incorporate quinoline, indolizine, and coumarin structures into galactoside derivatives and evaluation of binding affinities towards a panel of human galectins lead to the discovery of selective and potent inhibitors of the N-terminal domain of galectin-8.
Palladium-catalyzed direct mono-aroylation of O-arylmethyl and aryl-substituted acetoxime ethers
Authors: Shao Ling-Yan , Xu Zhi , Wang Cun-Ying , Fu Xiao-Pan , Chen Miao-Miao , Liu Hong-Wei , Ji Ya-Fei
Published: August 2018

A palladium-catalyzed ortho-aroylation of O-arylmethyl and aryl-substituted acetoxime ethers via direct C–H bond activation has been developed.
Chemoselective N–H functionalization of indole derivatives via the Reissert-type reaction catalyzed by a chiral phosphoric acid
Authors: Cai Yue , Gu Qing , You Shu-Li
Published: August 2018

An asymmetric N-alkylation of indole derivatives via the Reissert-type reaction was realized in the presence of 10 mol% chiral phosphoric acid.
Uncovering the rupture mechanism of carbon nanotube filled cis-1,4-polybutadiene via molecular dynamics simulation
Authors: Zhao Xiuying , Li Tiantian , Huang Lan , Li Bin , Liu Jun , Gao Yangyang , Zhang Liqun
Published: August 2018

In this work, by employing molecular dynamics simulations in a united atomistic resolution, we explored the rupture mechanism of carbon nanotube (CNT) filled cis-1,4-polybutadiene (PB) nanocomposites.
A study on fabrication of PVDF-HFP/PTFE blend membranes with controllable and bicontinuous structure for highly effective water-in-oil emulsion separation
Authors: Wang Xinya , Xiao Changfa , Liu Hailiang , Chen Mingxing , Hao Junqiang , Wu Yanjie
Published: August 2018

PVDF-HFP/PTFE blend membranes were prepared for the first time via TIPS method with DBP and DOP as mixed diluent and PTFE as the blending polymer. The obtained membranes could separate different water-in-oil emulsions effectively.
Grafted iron(iii) ions significantly enhance NO2 oxidation rate and selectivity of TiO2 for photocatalytic NOx abatement
Authors: Patzsch Julia , Spencer Jacob N. , Folli Andrea , Bloh Jonathan Z.
Published: August 2018

By grafting small amounts of iron ions onto TiO2, the rate of photocatalytic oxidation of NO2 is increased by a factor of 9.
Carbon supported olivine type phosphate framework: a promising electrocatalyst for sensitive detection of dopamine
Authors: Nehru Raja , Chen Shen-Ming
Published: August 2018

In this study, layered olivine-type LiMnPO4/functionalized-multiwall carbon nanotubes composite is used as an electrochemically active material for the real-time detection of dopamine and extended for the detection of human serum (E48) and rat brain-serum (C7) samples.
Correlation of crystal structure and optical properties of Ba0.97Nd0.0267Ti(1-x)WxO3 perovskite
Authors: Raddaoui Z. , Smiri B. , Maaoui A. , Dhahri J. , M'ghaieth R. , Abdelmoula N. , Khirouni K.
Published: August 2018

The Ba0.97Nd0.0267Ti(1−x)WxO3 (BNTx) pervoskite with a single phase tetragonal structure was prepared at 900 °C using the Molten salt method.
Facile fabrication of a recyclable nanobiocatalyst: immobilization of Burkholderia cepacia lipase on carbon nanofibers for the kinetic resolution of a racemic atenolol intermediate
Authors: Soni Surbhi , Dwivedee Bharat Prasad , Chand Banerjee Uttam
Published: August 2018

Immobilization of surfactant treated Burkholderia cepacia lipase on the surface of carbon nanofibers was performed via two different methods: adsorption and covalent attachment.
Enantioselective fluorination of homoallylic alcohols enabled by the tuning of non-covalent interactions
Authors: Coelho Jaime A. S. , Matsumoto Akira , Orlandi Manuel , Hilton Margaret J. , Sigman Matthew S. , Toste F. Dean
Published: August 2018

Multivariate correlation analysis, including designer π-interaction derived parameters, was applied to the study of the enantioselective fluorination of homoallylic alcohols via chiral anion phase transfer (CAPT) catalysis.
Between single ion magnets and macromolecules: a polymer/transition metal-based semi-solid solution
Authors: Majcher Anna M. , Dąbczyński Paweł , Marzec Mateusz M. , Ceglarska Magdalena , Rysz Jakub , Bernasik Andrzej , Ohkoshi Shin-ichi , Stefańczyk Olaf
Published: August 2018

A new material combining polymers and magnetic relaxations both in the bulk solid solution and in the thin film form.
Phosphorescent iridium(iii) complexes capable of imaging and distinguishing between exogenous and endogenous analytes in living cells
Authors: Zhang Kenneth Yin , Zhang Taiwei , Wei Huanjie , Wu Qi , Liu Shujuan , Zhao Qiang , Huang Wei
Published: August 2018

Phosphorescent iridium(iii) complexes bearing two carbon chains are able to distinguish between endogenous and exogenous analytes when serving as luminescent cellular probes.
Impact of the addition of poly-dihydrogen ruthenium precursor complexes on the hydrogen storage properties of the Mg/MgH2 system
Authors: Galey Basile , Auroux Aline , Sabo-Etienne Sylviane , Grellier Mary , Dhaher Sameh , Postole Georgeta
Published: August 2018

Addition of ruthenium precursor complexes to the Mg/MgH2 system for improved desorption and absorption properties.
Rechargeable organic–air redox flow batteries
Authors: Leung P. , Aili D. , Xu Q. , Rodchanarowan A. , Shah A. A.
Published: August 2018

A rechargeable organic–air flow battery based on aqueous electrolytes is proposed and tests are conducted in a divided cell with a three-electrode configuration.
Benzothiadiazole–triphenylamine as an efficient exciton blocking layer in small molecule based organic solar cells
Authors: Caliò Laura , Patil Bhushan R. , Benduhn Johannes , Vandewal Koen , Rubahn Horst-Günter , Madsen Morten , Kazim Samrana , Ahmad Shahzada
Published: August 2018

Small molecule based on benzothiadiazole–triphenylamine moieties (BTD–TPA2) was designed and was employed as an effective exciton blocking layer for solar cells fabrication.
TePbPt alloy nanotube as electrocatalyst with enhanced performance towards methanol oxidation reaction
Authors: Yang Long , Li Guoqiang , Ge Junjie , Liu Changpeng , Jin Zhao , Wang Guiling , Xing Wei
Published: August 2018

In this study, a ternary TePbPt alloy nanotube (NT) catalyst was designed based on the following rational considerations.
Activity enhancement via borate incorporation into a NiFe (oxy)hydroxide catalyst for electrocatalytic oxygen evolution
Authors: Wang Ning , Cao Zhen , Kong Xiangbin , Liang Junhui , Zhang Qixing , Zheng Lirong , Wei Changchun , Chen Xinliang , Zhao Ying , Cavallo Luigi , Zhang Bo , Zhang Xiaodan
Published: August 2018

The oxygen evolution reaction (OER) is a key process in electrocatalysis and is critical for achieving the cost-effective conversion of renewable electricity to chemicals and fuels.
A conductive selenized polyacrylonitrile cathode in nucleophilic Mg2+/Li+ hybrid electrolytes for magnesium–selenium batteries
Authors: Yuan Hancheng , Yang Yuanying , NuLi Yanna , Yang Jun , Wang Jiulin
Published: August 2018

Rechargeable magnesium–selenium (Mg–Se) batteries are promising electrochemical systems with higher energy density than traditional magnesium batteries. This work proposes combining of a conductive Se/PAN cathode and a compatible nucleophilic electrolyte to promote the performance of Mg–Se batteries.
Vacuum assisted solution processing for highly efficient Sb2S3 solar cells
Authors: Tang Rongfeng , Wang Xiaomin , Jiang Chenhui , Li Shiang , Jiang Guoshun , Yang Shangfeng , Zhu Changfei , Chen Tao
Published: August 2018

Vacuum assisted solution processing is capable of fabricating Sb2S3 films with high surface coverage, high crystallinity and phase purity, leading to a high power conversion efficiency of 6.78%.
Direct synthesis of sulfide capped CdS and CdS/ZnS colloidal nanocrystals for efficient hydrogen evolution under visible light irradiation
Authors: Fan Xiang-Bing , Yu Shan , Wu Hao-Lin , Li Zhi-Jun , Gao Yu-Ji , Li Xu-Bing , Zhang Li-Ping , Tung Chen-Ho , Wu Li-Zhu
Published: August 2018

CdS and CdS/ZnS colloidal nanocrystals (NCs) capped with inorganic sulfide (S2−) ligands were directly synthesized with no aid of organic ligands in water.
Broadband organic phototransistor with high photoresponse from ultraviolet to near-infrared realized via synergistic effect of trilayer heterostructure
Authors: Huang Fobao , Wang Xin , Xu Kun , Liang Yuanlong , Peng Yingquan , Liu Guohan
Published: August 2018

A broadband spectral response phototransistor was realized by introducing a trilayer all-organic heterostructure with the synergistic effect of a high mobility channel and strong mutual-complementary photoabsorption active layer, achieving a high photoresponse from the UV-Vis to the NIR region.
Auto‐reclosing scheme with adaptive dead time control for extra‐high‐voltage transmission line
Authors: Patel Ujjaval J. , Chothani Nilesh G. , Bhatt Praghnesh J. , Tailor Dhaval N.
Published: August 2018

Discrimination between transient fault and permanent fault is contemporary problems for protection of transmission line. Auto‐reclosure is one of the foremost solutions for the same. This study presents the development of auto‐reclosure scheme using modified full‐cycle discrete Fourier transform with adaptive dead time control. The discrimination between transient and permanent fault is done using differential voltage across the contacts of circuit breaker. Reclosing instance is identified by comparing absolute value of positive sequence voltage, phase difference and frequency difference with a respective preset threshold using synchronism check relay. The proposed scheme has been validated by simulating power system considering variation in fault location, fault clearance angle, fault resistance and load flow in PSCAD/EMTDC. The algorithm for the auto reclosing scheme is validated in MATLAB software. Real time emulation of the proposed algorithm is performed using AVR ATmega 328P controller on laboratory prototype. The test results of simulation and hardware emulation corroborate the efficacy of the proposed technique.
Influence of non‐uniform hydrophobicity distribution on pollution flashover characteristics of composite insulators
Authors: Yu Xinzhe , Zhang Qiaogen , Yang Xiaolei , Yang Hao , Zhou Jun , Liu Bo
Published: August 2018

The authors investigated the effect of the insulator hydrophilic fraction on the pollution flashover performance by the up‐and‐down method. The hydrophobicity of parts subjected to a high electric field intensity such as two ends of an insulator, may be weakened by corona discharge. In this study, they simulated the behaviour of composite insulator surfaces at six hydrophilic fractions. Furthermore, arc discharge was recorded using a high‐speed camera and the probability of arc discharge was analysed. They found that as the hydrophilic fraction was increased, the 50% probable flashover voltage first decreased and then increased. The wetting process and discharge type could be classified into two types and the flashover process could be divided into two stages by a clear hydrophilic fraction boundary through leakage current characteristic, discharge probability, and arc shape analysis. The results indicated that uneven hydrophobicity loss might lead to further flashover voltage reduction, up to 26.5% lower, than that with uniform hydrophilicity. This should be considered in transmission line design and maintenance of composite insulators.
Small-Scale Cosmology “Crisis” and Self-Interacting Right-Handed Neutrino Warm Dark Matter
Authors: Mavromatos Nick E.
Published: August 2018

In the lecture, I first review the basic problems of the ΔCDM model at small (galactic) scales, also known as “small-scale Cosmology crisis”, namely discrepancies between theoretical simulations and observations. I then argue how systems of righthanded neutrinos (RHN) with masses of order 50 keV in the galaxies can tackle these problems, provided appropriately strong RHN self-interactions are included. Such models may constitute interesting minimal extensions of the Standard Model. Combining galactic phenomenology with other astroparticle physics considerations of such models, one arrives at a narrow range 47 keVc-2≤ m ≤ 50 keVc-2for the allowed mass m of RHN, thereby pointing towards the rôle of such particles as interesteding warm dark matter components.
Advances in Relativistic Fluid Dynamics, Observables, and Applications - In Memoriam Walter Greiner
Authors: Csernai L.P.
Published: August 2018

Walter Greiner was one of the first physicists using Relativistic Fluid Dynamics for High Energy Nuclear Reactions. The present Inertial Confinement Fusion research and development is hindered by hydrodynamic instabilities, occurring at the intense compression of the target fuel by energetic laser beams. The suggested method combines recent advances in two fields: detonations in relativistic fluid dynamics and radiative energy deposition by plasmonic nano-shells. The compression of the target can be negligible and a laser pulse achieves rapid volume ignition, which is as short as the penetration time of the light across the pellet. The reflectivity of the target can be made negligible, and the absorptivity can be increased by one or two orders of magnitude using plasmonic nanoshells embedded in the target fuel. Thus, higher ignition temperature can be achieved with modest compression. The short light pulse can heat most of the interior of the target to the ignition temperature simultaneously. This prevents the development of any kind of instability, which would prevent complete ignition or transition of the target.
Sgoldstino searches at CERN Electron Beam Dump
Authors: Astapov Konstantin
Published: August 2018

In the present paper we discussed light scalar sgoldstino in context of low scale SUSY breaking. We analyzed electromagnetic sector of interaction of sgoldstino with SM. We also took into account the impact on this interaction of the admixture of lightest MSSM Higgs scalar in the sgoldstino state. The signal rate of rare sgoldstino decays into SM particles at CERN electron beam dump experiment NA64 for the scalar sgoldstino has been estimated. We used expected signal rate to obtain some regions of sgoldstino parameter space (sgoldstino mass and SUSY breaking scale √F).
Temperature dependence of bulk viscosity of SU(3)– gluodynamics within lattice simulation
Authors: Astrakhantsev N.Yu. , Braguta V.V. , Kotov A. Yu.
Published: August 2018

In this paper we present the results of the measurements of bulk viscosity temperature dependence in SU(3)-gluodynamics by means of lattice simulations. Our approach is based on the Kubo formula, which relates bulk viscosity and the correlator of the energy-momentum trace anomaly. We measured the correlation functions of the energy-momentum trace anomaly in the range of temperatures T/Tc ϵ [0.9, 1.5] and extracted the value of bulk viscosity using two methods. The first one was to apply the middle-point estimation. The second method is based on the Backus-Gilbert method allowing to extract the bulk viscosity from the lattice data nonparametrically. The results obtained within both methods are in agreement. Based on our results we conclude that the Gluon Plasma under study reveals the properties of a strongly interacting system, which cannot be described perturbatively.
Search for new physics in events with jets, b-tagged jets, and large missing transverse momentum in the all-hadronic channel at sqrt(s) = 13 TeV
Authors:   Samuel Louis Bein for the CMS Collaboration
Published: August 2018

A search for new physics in events with jets, b-tagged jets, missing transverse momentum, and no leptons, corresponding to an integrated luminosity of 35.9 fb-1 collected by the CMS experiment at sqrt(s) = 13 TeV, is presented. No significant excess of events on top of the standard model background expectation is observed. Results are interpreted in terms of a number of simplified supersymmetry models featuring squark and gluino production, and in terms of the pMSSM-19. For simplified models, lower limits on the gluino (squark) mass are established in the range 1.80-1.95 TeV (1.00-1.05 TeV), assuming a massless lightest supersymmetric particle.
Highlights from ATLAS
Authors: Bellagamba L.
Published: August 2018

This report presents an overview of some of the most recent results obtained by the ATLAS Collaboration using pp and heavy-ion collisions at the LHC. The review is not intended to be comprehensive and includes recent updates on the Higgs boson properties, precision Standard Model measurements, as well as searches for new physics. Most of the results exploit the data collected in the last LHC run, providing pp collisions at a centre of mass energy of 13 TeV.
Search for neutral and charged BSM Higgs Bosons with the ATLAS detector
Authors: de Renstrom Pawel Brückman
Published: August 2018

Several theories beyond the Standard Model, like the EWS or 2HDM models, predict the existence of high mass neutral or charged Higgs particles. The latest ATLAS results on searches for these particles will be briefly reviewed.
Modified Naiver-Stokes equation for conceptual tests of pure field physics
Authors: Bulyzhenkov Igor E.
Published: August 2018

Cartesian relativistic physics has its own nondual analog of the 1915 Einstein Equation for pure field physics in nonempty space. This tensor field analog leads to the vector geodesic equations for relativistic accelerations of Ricci material densities. Extended states of inertial energy densities modify the Navier-Stokes equation by the kinematic ‘living forces’ for the slow motion of material media. The new inertial feedback enables a conceptual choice between Newtonian and Cartesian alternatives (with localized or extended, respectively, elementary masses in the Universe) because of different pressure and temperature gradients across laboratory flows of liquids and gases.
Perspectives on the detection of supersymmetric Dark Matter
Authors: Boer Wim de
Published: August 2018

Up to now searches for Dark Matter (DM) detection have not been successful, either because our paradigm in howDMsignals should look like are wrong or the detector sensitivity is still too low in spite of the large progress made in recent years. We discuss both possibilities starting with what we know about DM from cosmology and why Supersymmetry provides such an interesting paradigm for cosmology and particle physics in order to appreciate what it means to give up this paradigm. In addition, we compare the predicted cross sections for direct and indirect DM detection with observations with emphasis on the latest developments. Especially, we discuss the possible origins of the two hotly debated candidates for a DM annihilation signal, namely the positron excess and the Fermi GeV excess, which are unfortunately incompatible with each other and more mundane astrophysical explanations exist.
Studies of low-energy K- nuclear interactions by AMADEUS
Authors: Del Grande R. , Bazzi M. , Belloti G. , Bragadireanu A.M. , Bosnar D. , Butt A.D. , Cargnelli M. , Curceanu C. , De Paolis L. , Fabbietti L. , Fiorini C. , Ghio F. , Guaraldo C. , Hayano R.S. , Iliescu M. , Iwasaki M. , Levi Sandri P. , Marton J. , Miliucci M. , Moskal P. , Okada S. , Pietreanu D. , Piscicchia K. , Scordo A. , Shi H. , Silarski M. , Sirghi D.L. , Sirghi F. , Skurzok M. , Spallone A. , Vazquez Doce O. , Widmann E. , Wycech S. , Zmeskal J.
Published: August 2018

The goal of the AMADEUS experiment is to shed light on unsolved fundamental issues in the non-perturbative strangeness QCD sector through the study of lowenergy K- hadronic interactions with light nuclear targets. The main open questions are the controversial nature of the Δ(1405) state, which is investigated in hyperon-pion correlation studies, and the possible existence of exotic antikaon multi-nucleon clusters, whose search in K- induced reactions is intimately related to the studies of the K- multi-nucleon absorption processes in hyperon-nucleon/nucleus channels. The DAΦNE collider at the INFN-LNF provides unique monochromatic low-momentum kaons from the φ meson decay almost at-rest, suitable for the AMADEUS studies. The KLOE detector is exploited as an active target, in order to obtain excellent acceptance and resolution data for K- nuclear capture on H, 4He, 9Be and 12C, both at-rest and in-flight.
CMS trigger performance
Authors: Donato Silvio
Published: August 2018

During its second run of operation (Run 2), started in 2015, the LHC will deliver a peak instantaneous luminosity that may reach 2 · 1034 cm-2s-1 with an average pileup of about 55, far larger than the design value. Under these conditions, the online event selection is a very challenging task. In CMS, it is realized by a two-level trigger system: the Level-1 (L1) Trigger, implemented in custom-designed electronics, and the High Level Trigger (HLT), a streamlined version of the offine reconstruction software running on a computer farm. In order to face this challenge, the L1 trigger has been through a major upgrade compared to Run 1, whereby all electronic boards of the system have been replaced, allowing more sophisticated algorithms to be run online. Its last stage, the global trigger, is now able to perform complex selections and to compute high-level quantities, like invariant masses. Likewise, the algorithms that run in the HLT have been greatly improved; in particular, new approaches for the online track reconstruction lead to a drastic reduction of the computing time, and to much improved performances. This document will describe the performance of the upgraded trigger system in Run 2.
Worldline colour fields and non-Abelian quantum field theory
Authors: Edwards James P. , Corradini Olindo
Published: August 2018

In the worldline approach to non-Abelian field theory the colour degrees of freedom of the coupling to the gauge potential can be incorporated using worldline “colour” fields. The colour fields generate Wilson loop interactions whilst Chern-Simons terms project onto an irreducible representation of the gauge group. We analyse this augmented worldline theory in phase space focusing on its supersymmetry and constraint algebra, arriving at a locally supersymmetric theory in superspace. We demonstrate canonical quantisation and the path integral on S1for simple representations of SU(N).
Introduction to Quantum Logical Information Theory: Talk
Authors: Ellerman David
Published: August 2018

Logical information theory is the quantitative version of the logic of partitions just as logical probability theory is the quantitative version of the dual Boolean logic of subsets. The resulting notion of information is about distinctions, differences, and distinguishability, and is formalized using the distinctions (“dits”) of a partition (a pair of points distinguished by the partition). All the definitions of simple, joint, conditional, and mutual entropy of Shannon information theory are derived by a uniform transformation from the corresponding definitions at the logical level. The purpose of this talk is to outline the direct generalization to quantum logical information theory that similarly focuses on the pairs of eigenstates distinguished by an observable, i.e., “qudits” of an observable. The fundamental theorem for quantum logical entropy and measurement establishes a direct quantitative connection between the increase in quantum logical entropy due to a projective measurement and the eigenstates (cohered together in the pure superposition state being measured) that are distinguished by the measurement (decohered in the postmeasurement mixed state). Both the classical and quantum versions of logical entropy have simple interpretations as “two-draw” probabilities for distinctions. The conclusion is that quantum logical entropy is the simple and natural notion of information for quantum information theory focusing on the distinguishing of quantum states.
Towards the first measurement of matter-antimatter gravitational interaction
Authors: Evans C. , Aghion S. , Amsler C. , Bonomi G. , Brusa R.S. , Caccia M. , Caravita R. , Castelli F. , Cerchiari G. , Comparat D. , Consolati G. , Demetrio A. , Di Noto L. , Doser M. , Fani M. , Ferragut R. , Fesel J. , Fontana A. , Gerber S. , Giammarchi M. , Gligorova A. , Guatieri F. , Haider S. , Hinterberger A. , Holmestad H. , Kellerbauer A. , Khalidova O. , Krasnický D. , Lagomarsino V. , Lansonneur P. , Lebrun P. , Malbrunot C. , Mariazzi S. , Marton J. , Matveev V. , Mazzotta Z. , Müller S.R. , Nebbia G. , Nedelec P. , Oberthaler M. , Pacifico N. , Pagano D. , Penasa L. , Petracek V. , Prelz F. , Prevedelli M. , Ravelli L. , Rienaecker B. , Robert J. , Røhne O.M. , Rotondi A. , Sandaker H. , Santoro R. , Smestad L. , Sorrentino F. , Testera G. , Tietje I.C. , Widmann E. , Yzombard P. , Zimmer C. , Zmeskal J. , Zurlo N.
Published: August 2018

The AEgIS (Antimatter Experiment: Gravity, Interferometry, Spectroscopy) is a CERN based experiment with the central aim to measure directly the gravitational acceleration of antihydrogen. Antihydrogen atoms will be produced via charge exchange reactions which will consist of Rydberg-excited positronium atoms sent to cooled antiprotons within an electromagnetic trap. The resulting Rydberg antihydrogen atoms will then be horizontally accelerated by an electric field gradient (Stark effect), they will then pass through a moiré deflectometer. The vertical deflection caused by the Earth's gravitational field will test for the first time the Weak Equivalence Principle for antimatter. Detection will be undertaken via a position sensitive detector. Around 103 antihydrogen atoms are needed for the gravitational measurement to be completed. The present status, current achievements and results will be presented, with special attention toward the laser excitation of positronium (Ps) to the n=3 state and the production of Ps atoms in the transmission geometry.
Low Momentum Direct Photon Measurement
Authors: Fan Wenqing
Published: August 2018

Direct photons have long been considered as golden probes to study the properties of the Quark Gluon Plasma (QGP). They do not interact strongly with the medium and are produced at all stages of the collision, hence carrying information of the entire evolution of the system to the detectors. The PHENIX experiment discovered a large excess of low pT photons in Au+Au collisions at √sNN = 200 GeV compared to reference p+p collisions, which has been interpreted as thermal radiation from the QGP and hadron gas medium. At the same time, the excess photons show a large elliptic and triangular flow. These results are challenging for the current theoretical models to describe simultaneously, because on one hand the large yield suggests early stage emissions when the temperature is high, on the other hand the large anisotropy is expected to be formed only at later stages of the collision when the system has cooled off and the thermal photon production rate is expected to be smaller. Using a variety of high statistics datasets across different collision systems and energies in PHENIX, simultaneous analyses of yields and azimuthal asymmetries of direct photons with higher precision are performed to provide more constraints to the theoretical calculations. In this talk, we will present recent results on low pT direct photons measured via their external conversions to electron-positron pairs, including new results from Au+Au at lower beam energies of 39 and 62.4 GeV, as well as Cu+Cu at 200GeV.
SU(2NF) symmetry of confinement in QCD and its observation at high temperature.
Authors: Glozman L.Ya.
Published: August 2018

In this talk we first overview lattice results that have led to the observation of new SU(2)CS and SU(2NF) symmetries upon artificial truncation of the near-zero modes of the Dirac operator at zero temperatute and at high temperature without any truncation. These symmetries are larger than the chiral symmetry of the QCD Lagrangian and contain chiral symmetries SU(NF)L x SU(NF)R and U(1)A as subgroups. In addition to the standard chiral transformations the SU(2)CS and SU(2NF) transformations mix the right- and left-handed components of the quark fields. It is a symmetry of the confining chromo-electric interaction while the chromo-magnetic interaction manifestly breaks it. Emergence of these symmetries upon truncation of the near-zero modes of the Dirac operator at T=0 means that all effects of the chromo-magnetic interaction are located exclusively in the near-zero modes, while confining chromo-electric interaction is distributed among all modes. Appearance of these symmetries at high T, where the temperature suppresses the near-zero modes, has radical implications because these symmetries are incompatible with the asymptotically free deconfined quarks at increasing temperature. The elementary objects in the high-temperature phase of QCD should be quarks bound by the pure chromo-electric field that is not accompanied by the chromo-magnetic effects.
Precision RENORM / MBR Diffraction Predictions Tested by Recent LHC Results
Authors: Goulianos Konstantin
Published: August 2018

Diffractive, elastic, and precision total pp cross-section predictions, based on the pre-LHC RENORM/MBR model, are compared to recent experimental results. Discrepancies among results by different experiments present a challenge to testing the model. Suggestions for analyses/measurements to understand and resolve the experimental discrepancies are discussed.
tt̄H Coupling Measurement with the ATLAS Detector at the LHC
Authors: Hadef Asma
Published: August 2018

The Higgs boson was discovered on the 4th of July 2012 with a mass around 125 GeV by ATLAS and CMS experiments at LHC. Determining the Higgs properties (production and decay modes, couplings,...) is an important part of the high-energy physics programme in this decade. A search for the Higgs boson production in association with a top quark pair (tt̄H) at ATLAS [1] is summarized in this paper at an unexplored center-of-mass energy of 13 TeV, which could allow a first direct measurement of the top quark Yukawa coupling and could reveal new physics. The tt̄H analysis in ATLAS is divided into 3 channels according to the Higgs decay modes: H → Hadrons, H → Leptons and H → Photons. The best-fit value of the ratio of observed and Standard Model cross sections of tt̄H production process, using 2015-2016 data and combining all tt̄H final states, is 1:8±0:7, corresponds to 2:8σ (1:8σ) observed (expected) significance.
Separate freeze-out of strange particles and the quark-hadron phase transition
Authors: Bugaev K. , Sagun V. , Ivanytskyi A. , Nikonov E. , Cleymans J. , Mishustin I. , Zinovjev G. , Bravina L.V. , Zabrodin E.E.
Published: August 2018

The scenario of the independent chemical freeze-outs for strange and nonstrange particles is discussed. Within such a scenario an apparent in-equilibrium of strangeness is naturally explained by a separation of chemical freeze-out of strange hadrons from the one of non-strange hadrons, which, nevertheless, are connected by the conservation laws of entropy, baryonic charge and third isospin projection. An interplay between the separate freeze-out of strangeness and its residual non-equilibrium is studied within an elaborate version of the hadron resonance gas model. The developed model enables us to perform a high-quality fit of the hadron multiplicity ratios measured at AGS, SPS and RHIC with an overall fit quality ϰ2/dof = 0:93. A special attention is paid to a description of the Strangeness Horn and to the well-known problem of selective suppression of Δ- and ж hyperons. It is remarkable that for all collision energies the strangeness suppression factor γs is about 1 within the error bars. The only exception is found in the vicinity of the center-of-mass collision energy 7.6 GeV, at which a residual enhancement of strangeness of about 20 % is observed.
The fixed target experiment for studies of baryonic matter at the Nuclotron (BM@N)
Authors: Kapishin Mikhail
Published: August 2018

BM@N (Baryonic Matter at Nuclotron) is the first experiment to be realized at the accelerator complex of NICA-Nuclotron. The aim of the BM@N experiment is to study interactions of relativistic heavy ion beams with fixed targets. The BM@N setup, results of Monte Carlo simulations, the BM@N experimental program and results of technical runs are presented.
Electron Ion Collider: 3D-Imaging the Nucleon
Authors: Radici Marco
Published: August 2018

The Electron Ion Collider (EIC) is the project for a new US-based, high-energy, high-luminosity facility, capable of a versatile range of beam energies, polarizations, and ion species. Its primary goal is to precisely image quarks and gluons and their interactions inside hadrons, in order to investigate their confined dynamics and elucidate how visible matter is made at its most fundamental level. I will introduce the main physics questions addressed by such a facility, and give some more details on the topic of Transverse Momentum Dependent parton distributions (TMDs).
Equation of state of quark-gluon plasma using a simple phenomenological model
Authors: Kumar Yogesh
Published: August 2018

The equation of state (EoS) of quark-gluon plasma (QGP) using a phenomenological model is studied in which finite value of quark mass is modified as effective mass. The effective mass of these quasiparticle generated due to the interaction of quarks and gluons with the surrounding matter in the medium. The model results provide EoS of QGP which are in good agreement and found almost similar results to the earlier theoretical results. This model is successfully applied to the description of the properties of quark-gluon plasma created in the collision of nucleons. Thus, the effective mass of quark shows the useful information to study the EoS of QGP in high energy heavy-ion collisions.
The Hellenic Open University Cosmic Ray Telescope: Research and Educational Activities
Authors: Leisos A. , Avgitas T. , Bourlis G. , Fanourakis G.K. , Gkialas I. , Manthos I. , Stamelakis A. , Tsirigotis A.G. , Tzamarias S.E.
Published: August 2018

The Hellenic Open University Cosmic Ray Telescope consists of three autonomous stations installed at the University Campus in the city of Patras. Each station comprises three large (≈ 1 m2) plastic scintillators and one or more Codalema type RF antennas detecting Extensive Air Showers (EAS), originating from primary particles with energy greater than 10 TeV. The operation and the performance of the Telescope is presented briefly, emphasising the educational activities foreseen in the framework of the HEllenic LYceum Cosmic Observatories Network (HELYCON).
Magnetic structure of vector mesons in lattice QCD
Authors: Luschevskaya E.V. , Solovjeva O.E. , Teryaev O.V. , Prokudin M.S.
Published: August 2018

We have explored the response of the charged vector mesons on the external magnetic field. The g-factor of the charged vector ρ and K* mesons has been found. For the charged vector ρ meson the magnetic polarizability and hyperpolarizability have been calculated depending on the spin projection on the the magnetic field. We have estimated the intervals of the magnetic field for which the nonlinear terms in field give a significant contribution to the meson energy.
Measurement of Z → bb̄ cross section and search for a Higgslike particle produced in association with b quarks at CDF
Authors: Marchese Luigi
Published: August 2018

We present a measurement of the Z → bb̄ production cross section in pp collisions at √s = 1.96 TeV . We use a data set of 5.46 fb-1 collected by the CDF experiment at the Tevatron collider during Run II using a dedicated trigger path which required a displaced vertex compatible with a b-hadron decay. A data-driven procedure is applied to estimate the dijet mass spectrum of the non-resonant multijet background. Using a similar strategy we set one of the most stringent upper limits on the production of a Higgs-like particle in association with b quarks. We also set a limit on the inclusive SM H → bb̄.
The ATLAS Run-2 Trigger Menu for Higher Luminosities: Design, Performance and Operational Aspects
Authors: Arantxa Ruiz Martínez
Published: August 2018

The ATLAS experiment aims at recording about 1 kHz of physics collisions, starting with an LHC design bunch crossing rate of 40 MHz. To reduce the massive background rate while maintaining a high selection effciency for rare physics events (such as beyond the Standard Model physics), a two-level trigger system is used. Events are selected based on physics signatures such as the presence of energetic leptons, photons, jets or large missing energy. The trigger system exploits geometrical information on candidate objects, as well as multi-variate methods to carry out the necessary physics filtering. In total, the ATLAS online selection consists of thousands of different individual triggers. A trigger menu is a compilation of these triggers which specifies the physics algorithms to be used during data taking and the bandwidth a given trigger is allocated to. Trigger menus reflect not only the physics goals of the collaboration for a given run, but also take into consideration the instantaneous luminosity of the LHC and limitations from the ATLAS detector readout and online processing farm. For the 2017 run, the ATLAS trigger has been enhanced to be able to handle higher instantaneous luminosities (up to 2:0x1034 cm-2s-1) and to ensure the selection robustness against higher average multiple interactions per bunch crossing. In these proceedings, we describe the design criteria for the trigger menus used for Run 2 at the LHC. We discuss several aspects of the process, from the validation of the algorithms, the fine-tuning of the prescales, and the monitoring tools that ensure the smooth operation of the trigger during data taking. We also report on the physics performance of a few trigger algorithms.
Heavy ion physics at LHCb
Authors: Maurice Émilie
Published: August 2018

The LHCb detector, with its excellent momentum resolution and particle identification, is ideally suited for measuring heavy quark hadron and quarkonium production properties. Recent LHCb measurements of charmonium and open charm production in several configurations of proton-nucleus collisions are presented.
A review of neutrino properties Neutrino oscillations - a historical overview and its projection
Authors: Minkowski Peter
Published: August 2018

In a first part neutrino properties are presented from the beginnings through the letter of Wolfgang Pauli on 4. December 1930 suggesting a new neutral fermion to the “Radioactive Ladies and Gentlemen” at a Conference in Tübingen, contributing to the first oscillation cycle, based on my review at the meeting “Neutrino Telescopes in Venice” in 2005. cited in [1]. In the remaining part I shall present a selection of neutrino properties featuring the structure of mass and mixing of the light and heavy neutrino flavors, a symmetric, complex 6 by 6 matrix within the unifying SO10 gauge group, and present prospects for the detection of the leptonflavor violating processes Bs → μe; B → K μ e, also such involving b-flavored baryons .
Hunting New Physics with ATLAS
Authors: Mitsou Vasiliki A. ,   On behalf of the ATLAS Collaboration
Published: August 2018

Highlights from recent new physics searches with the ATLAS detector at the CERN LHC are presented in this paper. They include searches for extra-dimension models, compositeness, new gauge bosons, supersymmetry, among others. Results are based on analyses of pp collision data recorded at a centre-of-mass energy of 13 TeV.
Super Heavy Elements - experimental developments
Authors: Münzenberg Gottfried
Published: August 2018

With his theoretical work Walter Greiner, our mentor, pioneered super heavy element research and motivated us young scientists. He actively shaped the profile of GSI. We are happy that still during his lifetime we could prove some of his predictions: Fusion with magic nuclei paving the way to super heavy elements and the proof of the prediction of the nuclear species existing only by shell stabilization, super heavy elements. With the discovery of oganesson, Z=118, the heaviest element known today, we have come to the end of this era. New experimental developments will be discussed.