pinecone/core-2020-05-10-deduplication huggingface dataset:
Search for high-mass diboson resonances with boson-tagged jets in
  proton-proton collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector

A search is performed for narrow resonances decaying into $WW$, $WZ$, or $ZZ$
boson pairs using 20.3 fb$^{-1}$ of proton-proton collision data at a
centre-of-mass energy of $\sqrt{s}$ = 8 TeV recorded with the ATLAS detector at
the Large Hadron Collider. Diboson resonances with masses in the range from 1.3
to 3.0 TeV are sought after using the invariant mass distribution of dijets
where both jets are tagged as a boson jet, compatible with a highly boosted $W$
or $Z$ boson decaying to quarks, using jet mass and substructure properties.
The largest deviation from a smoothly falling background in the observed dijet
invariant mass distribution occurs around 2 TeV in the $WZ$ channel, with a
global significance of 2.5 standard deviations. Exclusion limits at the 95%
confidence level are set on the production cross section times branching ratio
for the $WZ$ final state of a new heavy gauge boson, $W'$, and for the $WW$ and
$ZZ$ final states of Kaluza--Klein excitations of the graviton in a bulk
Randall--Sundrum model, as a function of the resonance mass. $W'$ bosons with
couplings predicted by the extended gauge model in the mass range from 1.3 to
1.5 TeV are excluded at 95% confidence level.Comment: 21 pages plus author list + cover pages (37 pages total), 6 figures,
  6 table, submitted to JHEP, All figures including auxiliary figures are
  available at
  http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/EXOT-2013-08
Pseudorapidity distribution of charged hadrons in proton-proton
  collisions at sqrt(s) = 13 TeV

The pseudorapidity distribution of charged hadrons in pp collisions at
sqrt(s) =13 TeV is measured using a data sample obtained with the CMS detector,
operated at zero magnetic field, at the CERN LHC. The yield of primary charged
long-lived hadrons produced in inelastic pp collisions is determined in the
central region of the CMS pixel detector (abs(eta)<2) using both hit pairs and
reconstructed tracks. For central pseudorapidities (abs(eta)<0.5), the
charged-hadron multiplicity density is dN/d(eta)[charged,abs(eta) < 0.5] = 5.49
+/- 0.01 (stat) +/- 0.17 (sys), a value obtained by combining the two methods.
The result is compared to predictions from Monte Carlo event generators and to
similar measurements made at lower collision energies.Comment: Version published in Phys. Lett.
A geometric interpretation of the Sch\"utzenberger group of a minimal
  subshift

The first author has associated in a natural way a profinite group to each
irreducible subshift. The group in question was initially obtained as a maximal
subgroup of a free profinite semigroup. In the case of minimal subshifts, the
same group is shown in the present paper to also arise from geometric
considerations involving the Rauzy graphs of the subshift. Indeed, the group is
shown to be isomorphic to the inverse limit of the profinite completions of the
fundamental groups of the Rauzy graphs of the subshift. A further result
involving geometric arguments on Rauzy graphs is a criterion for freeness of
the profinite group of a minimal subshift based on the Return Theorem of
Berth\'e et. al
Single top partner production in the Higgs to diphoton channel in the
  Littlest Higgs Model with $T$-parity

The top partner as a hallmark of the Littlest Higgs model with $T$-parity
(LHT model) has been extensively searched for during the Large Hadron Collider
(LHC) Run-1. With the increasing mass limits on the top partner, the single
production of the top partner will be dominant over the pair production. Under
the constraints from the Higgs data, the electroweak precision observables and
$R_b$, we find that the mass of $T$-even top partner ($T_+$) has to be heavier
than 730 GeV. Then, we investigate the observability of the single $T$-even top
partner production through the process $pp \to T_+ j$ with the sequent decay
$T_+ \to th$ in the di-photon channel in the LHT model at the LHC. We find that
the mass of $T_+$ can be excluded up to 800 GeV at $2\sigma$ level at 14 TeV
LHC with the integrated luminosity ${\cal L}=3$ ab$^{-1}$
Type Ia supernova progenitors and chemical enrichment in hydrodynamical simulations. I. The single-degenerate scenario

This work was partially supported by PIP 2009/0305(CONICET-Argentina) and PICT Raices 2011/959 (Foncyt-Argentina). Also, this work was supported by PIP 2009/0305(CONICET-Argentina), PICT Raices 2011/959 (Foncyt-Argentina), "Proyecto Interno" of the Universidad Andres Bello (Chile), and Fondecyt Regular 2015 1150334. F.M. acknowledges financial support from PRINMIUR2010-2011, project: "Chemical and dynamical evolution of the Milky Way and Local Group Galaxies," prot.N. 2010LY5N2T.The nature of the Type Ia supernova (SN Ia) progenitors remains uncertain. This is a major issue for galaxy evolution models since both chemical and energetic feedback plays a major role in the gas dynamics, star formation, and therefore the overall stellar evolution. The progenitor models for the SNe Ia available in the literature propose different distributions for regulating the explosion times of these events. These functions are known as the delay time distributions (DTDs). This work is the first one in a series of papers aiming at studying five different DTDs for SNe Ia. Here we implement and analyze the single-degenerate (SD) scenario in galaxies dominated by a rapid quenching of the star formation, displaying the majority of the stars concentrated in the bulge component. We find a good fit to both the present observed SN Ia rates in spheroidal-dominated galaxies and the [O/Fe] ratios shown by the bulge of the Milky Way. Additionally, the SD scenario is found to reproduce a correlation between the specific SN Ia rate and the specific star formation rate (sSFR), which closely resembles the observational trend, at variance with previous works. Our results suggest that SN Ia observations in galaxies with very low and very high sSFRs can help to impose more stringent constraints on the DTDs and therefore on SN Ia progenitors.PostprintPeer reviewe
Search for new resonances in Wѵ and ℤѵ final states in pp collisions at √s=8 TeV with the ATLAS detector

This Letter presents a search for new resonances decaying to final states with a vector boson produced in association with a high transverse momentum photon, Vγ, with V=W(→ℓν)or Z(→ℓ+ℓ−), where ℓ =e or μ. The measurements use 20.3fb−1 of proton–proton collision data at a center-of-mass energy of √s=8TeV recorded with the ATLAS detector. No deviations from the Standard Model expectations are found, and production cross section limits are set at 95% confidence level. Masses of the hypothetical aT and ωT states of a benchmark Low Scale Technicolor model are excluded in the ranges [275, 960] GeVand [200, 700] ∪[750, 890] GeV, respectively. Limits at 95% confidence level on the production cross section of a singlet scalar resonance decaying to Zγ final states have also been obtained for masses below 1180 GeV
‘True Blood’ the critical care story: An audit of blood sampling practice across three adult, paediatric and neonatal intensive care settings

<b>Background</b>\ud
\ud
 - Anaemia is common in critically ill patients, and has a significant negative impact on patients' recovery. Blood conservation strategies have been developed to reduce the incidence of iatrogenic anaemic caused by sampling for diagnostic testing. \ud
\ud
<b>Objectives</b>\ud
\ud
 - Describe practice and local guidelines in adult, paediatric and neonatal Australian intensive care units (ICUs) regarding blood sampling and conservation strategies. \ud
\ud
<b>Methods</b>\ud
\ud
 - Cross-sectional descriptive study, conducted July 2013 over one week in single adult, paediatric and neonatal ICUs in Brisbane. Data were collected on diagnostic blood samples obtained during the study period, including demographic and acuity data of patients. Institutional blood conservation practice and guidelines were compared against seven evidence-based recommendations. \ud
\ud
<b>Results</b>\ud
\ud
 - A total of 940 blood sampling episodes from 96 patients were examined across three sites. Arterial blood gas was the predominant reason for blood sampling in each unit, accounting for 82% of adult, 80% of paediatric and 47% of neonatal samples taken (p <. 0.001). Adult patients had significantly more median [IQR] samples per day in comparison to paediatrics and neonates (adults 5.0 [2.4]; paediatrics 2.3 [2.9]; neonatal 0.7 [2.7]), which significantly increased median [IQR] blood sampling costs per day (adults AUD$101.11 [54.71]; paediatrics AUD$41.55 [56.74]; neonatal AUD$8.13 [14.95]; p <. 0.001). The total volume of samples per day (median [IQR]) was also highest in adults (adults 22.3. mL [16.8]; paediatrics 5.0. mL [1.0]; neonates 0.16. mL [0.4]). There was little information about blood conservation strategies in the local clinical practice guidelines, with the adult and neonatal sites including none of the seven recommendations. \ud
\ud
<b>Conclusions</b>\ud
\ud
 - There was significant variation in blood sampling practice and conservation strategies between critical care settings. This has implications not only for anaemia but also infection control and healthcare costs
Search for a standard model-like Higgs boson in the mu+ mu- and e+ e- decay channels at the LHC

A search is presented for a standard model-like Higgs boson decaying to muon pair or electron pair final states based on proton-proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated luminosities of 5.0 inverse femtobarns at a centre-of-mass energy of 7 TeV and 19.7 inverse femtobarns at 8 TeV for the muon search, and of 19.7 inverse femtobarns at 8 TeV for the electron search. Upper limits on the production cross section times branching fraction at the 95% confidence level are reported for Higgs boson masses in the range from 120 to 150 GeV. For a Higgs boson with a mass of 125 GeV decaying to muons, the observed (expected) upper limit on the production rate is found to be 7.4 (6.5 +2.8 -1.9) times the standard model value. This corresponds to an upper limit on the branching fraction of 0.0016. Similarly, for electrons, an upper limit of 0.0019 is placed on the branching fraction, which is about 3.7 E5 times the standard model value. These results, together with recent evidence of the 125 GeV boson coupling to tau-leptons with a larger branching fraction consistent with the standard model, confirm that the leptonic couplings of the new boson are not flavour-universal
Rapidity and momentum transfer distributions of coherent J/ψ photoproduction in ultraperipheral pPb collisions at the LHC

Based on accurate calculations of the flux of equivalent photons of the proton and heavy nuclei and the pQCD framework for the gluon distribution in the proton and nuclei, we analyze the rapidity and momentum transfer distributions of coherent J/ψ photoproduction in ultraperipheral proton-Pb collisions at the LHC. We demonstrate that unlike the case of proton-proton UPCs marred by certain theoretical uncertainties and experimental limitations, after a cut excluding the region of small momentum transfers, ultraperipheral proton-Pb collisions offer a clean way to study the gluon distribution in the proton down to x  ≈ 10 −5 . Our analysis of the momentum transfer distributions shows that an interplay of J/ψ production by low-energy photons on the nucleus and by high-energy photons on the proton in proton-Pb UPCs can result in some excess of events at small p t in a definite region of the rapidity y
On dynamical realizations of l -conformal Galilei and Newton–Hooke algebras

In two recent papers (Aizawa et al., 2013 [15] ) and (Aizawa et al., 2015 [16] ), representation theory of the centrally extended l -conformal Galilei algebra with half-integer l has been applied so as to construct second order differential equations exhibiting the corresponding group as kinematical symmetry. It was suggested to treat them as the Schrödinger equations which involve Hamiltonians describing dynamical systems without higher derivatives. The Hamiltonians possess two unusual features, however. First, they involve the standard kinetic term only for one degree of freedom, while the remaining variables provide contributions linear in momenta. This is typical for Ostrogradsky's canonical approach to the description of higher derivative systems. Second, the Hamiltonian in the second paper is not Hermitian in the conventional sense. In this work, we study the classical limit of the quantum Hamiltonians and demonstrate that the first of them is equivalent to the Hamiltonian describing free higher derivative nonrelativistic particles, while the second can be linked to the Pais–Uhlenbeck oscillator whose frequencies form the arithmetic sequence ωk=(2k−1) , k=1,…,n . We also confront the higher derivative models with a genuine second order system constructed in our recent work (Galajinsky and Masterov, 2013 [5] ) which is discussed in detail for l=32
Are public-private partnerships a healthy option? A systematic literature review

Governments around the world, but especially in Europe, have increasingly used private sector involvement in developing, financing and providing public health infrastructure and service delivery through public–private partnerships (PPPs). Reasons for this uptake are manifold ranging from rising expenditures for refurbishing, maintaining and operating public assets, and increasing constraints on government budgets stifle, seeking innovation through private sector acumen and aiming for better risk management. Although PPPs have attracted practitioner and academic interest over the last two decades, there has been no attempt to integrate the general and health management literature to provide a holistic view of PPPs in healthcare delivery. This study analyzes over 1400 publications from a wide range of disciplines over a 20-year time period. We find that despite the scale and significance of the phenomenon, there is relatively limited conceptualization and in-depth empirical investigation. Based on bibliographic and content analyses, we synthesize formerly dispersed research perspectives into a comprehensive multi-dimensional framework of public-private partnerships. In so doing, we provide new directions for further research and practice
PPAR-α transcriptional activity is required to combat doxorubicin-induced podocyte injury in mice.

Immunosuppressants and inhibitors of the renin angiotensin system are major reagents to treat nephrotic syndrome but their clinical effects are not necessarily satisfactory. Injection of doxorubicin in several strains of mice causes nephrotic syndrome-like disorder. Zhou et al. report that PPAR-α expression is downregulated in murine doxorubicin nephropathy and a PPAR-α agonist, fenofibrate, partially ameliorates the disorder induced likely through stabilization of nephrin expression and suppression of apoptosis in podocytes, providing a new preventive strategy
Characterizing major avalanche episodes in space and time in the twentieth and early twenty-first centuries in the Catalan Pyrenees

With the aim of better understanding avalanche risk in the Catalan Pyrenees, the present work focuses on the analysis of major (or destructive) avalanches. For such purpose major avalanche cartography was made by an exhaustive photointerpretation of several flights, winter and summer field surveys and inquiries to local population. Major avalanche events were used to quantify the magnitude of the episodes during which they occurred, and a Major Avalanche Activity Magnitude Index (MAAMI) was developed. This index is based on the number of major avalanches registered and its estimated frequency in a given time period, hence it quantifies the magnitude of a major avalanche episode or winter. Furthermore, it permits a comparison of the magnitude between major avalanche episodes in a given mountain range, or between mountain ranges, and for a long enough period, it should allow analysis of temporal trends. Major episodes from winter 1995/96 to 2013/14 were reconstructed. Their magnitude, frequency and extent were also assessed. During the last 19 winters, the episodes of January 22-23 and February 6-8 in 1996 were those with highest MAAMI values, followed by January 30-31, 2003, January 29, 2006, and January 24-25,2014. To analyze the whole twentieth century, a simplified MAAMI was defined in order to attain the same purpose with a less complete dataset With less accuracy, the same parameters were obtained at winter time resolution throughout the twentieth century. Again, 1995/96 winter had the highest MAAMI value followed by 1971/72, 1974/75 and 1937/38 winter seasons. The analysis of the spatial extent of the different episodes allowed refining the demarcation of nivological regions, and improving our knowledge about the atmospheric patterns that cause major episodes and their climatic interpretation. In some cases, the importance of considering a major avalanche episode as the result of a previous preparatory period, followed by a triggering one was revealed.Postprint (author’s final draft
Isolated dwarf galaxies: from cuspy to flat dark matter density profiles and metalicity gradients

The chemodynamical evolution of spherical multi-component self-gravitating models for isolated dwarf galaxies is studied. We compared their evolution with and without feedback effects from star formation processes. We found that initially cuspy dark matter profiles flatten with time without any special tuning conditions as a result of star formation. Thus the seemingly flattened profiles found in many dwarfs do not contradict the cuspy profiles predicted by cosmological models. We also calculated the chemical evolution of stars and gas, to permit comparisons with observational data.Peer-reviewedPublisher Version4407
Spectroscopy and multiband photometry of the afterglow of intermediate duration γ-ray burst GRB 040924 and its host galaxy

Aims. We present optical photometry and spectroscopy of the afterglow and host galaxy of gamma-ray burst GRB 040924. This GRB had a rather short duration of T90 ~2.4 s, and a well sampled optical afterglow light curve. We aim to use this dataset to find further evidence that this burst is consistent with a massive star core-collapse progenitor.\ud
Methods. We combine the afterglow data reported here with those from the literature and compare the host properties with survey data.\ud
Results. We find that the global behaviour of the optical afterglow is well fit by a broken power-law, with a break at ~0.03 days. We determine the redshift z = 0.858 $\pm$ 0.001 from the detected emission lines in our spectrum. Using the spectrum and photometry we derive global properties of the host, showing it to have similar properties to other long GRB hosts. We detect the [Ne III] emission line in the spectrum, and compare the fluxes of this line of a sample of 15 long GRB host galaxies with survey data, showing the long GRB hosts to be comparable to local metal-poor emission line galaxies in their [Ne III] emission. We fit the supernova bump accompanying this burst, and find that it is similar to other long GRB supernova bumps, but fainter.\ud
Conclusions. All properties of GRB 040924 (the associated supernova, the spectrum and SED of host and afterglow) are consistent with an origin in the core-collapse of a massive star.Peer-reviewedPublisher Version902
Revisiting GRACE Antarctic ice mass trends and accelerations considering autocorrelation.

Previous GRACE-derived ice mass trends and accelerations have almost entirely been based on an assumption that the residuals to a regression model (including also semi-annual, annual and tidal aliasing terms) are not serially correlated. We consider ice mass change time series for Antarctica and show that significant autocorrelation is, in fact, present. We examine power-law and autoregressive models and compare them to those that assume white (uncorrelated) noise. The data do not let us separate autoregressive and power-law models but both indicate that white noise uncertainties need to be scaled up by a factor of up to 4 for accelerations and 6 for linear rates, depending on length of observations and location. For the whole of Antarctica, East Antarctica and West Antarctica the scale factors are 1.5, 1.5 and 2.2 respectively for the trends and, for the accelerations, 1.5, 1.5 and 2.1. Substantially lower scale-factors are required for offshore time series, suggesting much of the time-correlation is related to continental mass changes. Despite the higher uncertainties, we find significant (2-sigma) accelerations over much of West Antarctica (overall increasing mass loss) and Dronning Maud Land (increasing mass gain) as well as a marginally significant acceleration for the ice sheet as a whole (increasing mass loss)
Effects of habituation, research and ecotourism on faecal glucocorticoid metabolites in wild western lowland gorillas : implications for conservation management.

Wildlife tourism is proliferating worldwide and has the potential to raise revenue for conservation as well as public awareness of conservation issues. However, concerns are growing about the potentially negative influence of such tourism on the wildlife involved. We investigate the effects of habituation, ecotourism and research activities on levels of faecal glucocorticoid metabolites (FGCMs), a proxy for physiological stress, in wild western lowland gorillas (Gorilla gorilla gorilla) in the Central African Republic. We compare FGCMs in three human-contacted groups with those in unhabituated gorillas. We also explore how human–gorilla contact influences FGCMs of a gorilla group undergoing habituation and investigate how measures of general human–gorilla contact, tourism and human proximity influence FGCMs in recently and long-term habituated groups. Two of the three human-contacted groups had higher levels of FGCMs than unhabituated gorillas. The group undergoing habituation had the highest FGCMs, which increased up to 21 days following contacts, suggesting a cumulative FGCM response, in line with descriptions of a hormonal adaptation response to a chronic intermittent stressor. FGCMs in habituated groups were significantly associated with increasing frequency of violation of the 7 m distance rule by observers and with a medical intervention but not with other measures of human pressure. Our findings provide critical information for the management of this, and other, species whose conservation depends on habituation for ecotourism