cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inflation, Leptogenesis, and Yukawa Quasi-Unification within a Supersymmetric Left-Right Model
Creators: name: Armillis, R.
name: Lazarides, G.
name: Pallis, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A simple extension of the minimal left-right symmetric supersymmetric grand unified theory model is constructed by adding two pairs of superfields. This naturally violates the partial Yukawa unification predicted by the minimal model. After including supergravity corrections, we find that this extended model naturally supports hilltop F-term hybrid inflation along its trivial inflationary path with only a very mild tuning of the initial conditions. With a convenient choice of signs of the terms in the Kahler potential, we can reconcile the inflationary scale with the supersymmetric grand unified theory scale. All the current data on the inflationary observables are readily reproduced. Inflation is followed by non-thermal leptogenesis via the decay of the right-handed neutrinos emerging from the decay of the inflaton and any possible washout of the lepton asymmetry is avoided thanks to the violation of partial Yukawa unification. The extra superfields also assist us in reducing the reheat temperature so as to satisfy the gravitino constraint. The observed baryon asymmetry of the universe is naturally reproduced consistently with the neutrino oscillation parameters.
description: 20 pages including 4 figures
Juno mostra i laghi di lava di Io in alta definizione
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2024

Le immagini a infrarossi ottenute dallo strumento Jiram a bordo della sonda Juno della Nasa animano la discussione sul funzionamento interno di Io, la luna più calda di Giove. «L’elevata risoluzione spaziale delle immagini a infrarossi di Jiram, combinata con la posizione favorevole di Juno durante i sorvoli, ha rivelato che l'intera superficie di Io è coperta da laghi di lava contenuti in strutture simili a caldere», dice Alessandro Mura dell’Inaf, primo autore dello studio
"susy.371379.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
"susy.371380.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Applying the metallicity-dependent binary fraction to double white dwarf formation: Implications for LISA
Creators: name: Thiele, Sarah
name: Breivik, Katelyn
name: Sanderson, Robyn E.
name: Luger, Rodrigo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Short-period double white dwarf (DWD) binaries will be the most prolific source of gravitational waves (GWs) for the Laser Interferometer Space Antenna (LISA). DWDs with GW frequencies below $\sim1$ mHz will be the dominant contributor to a stochastic foreground caused by overlapping GW signals. Population modeling of Galactic DWDs typically assumes a binary fraction of 50% and a log-uniform Zero Age Main Sequence (ZAMS) orbital period distribution. However, recent observations have shown that the binary fraction of close, solar-type stars exhibits a strong anti-correlation with metallicity which modulates the ZAMS orbital period distribution below $10^4$ days. In this study we perform the first simulation of the Galactic DWD population observable by LISA which incorporates an empirically-derived metallicity-dependent binary fraction, using the binary population synthesis suite COSMIC and a metallicity-dependent star formation history. We compare two models: one which assumes a metallicity-dependent binary fraction, and one with a binary fraction of 50%. We repeat our analysis for three different assumptions for Roche-lobe overflow interactions. We find that while metallicity impacts the evolution and intrinsic properties of our simulated DWD progenitor binaries, the LISA-resolvable populations of the two models remain roughly indistinguishable. However, the size of the total Galactic DWD population orbiting in the LISA frequency band is reduced by more than half when accounting for a metallicity-dependent binary fraction for two of our four variations, which also lowers the effective foreground. The LISA population remains unchanged in number for two variations, highlighting the sensitivity of the population to binary evolution prescriptions.
description: 24 pages, 11 figures. Accepted version for publication in ApJ
Tutti insieme allineatamente
Creators: Federica Loiacono
Publisher: name: Media Inaf
Year: 2024

Per la prima volta è stato osservato l’allineamento di numerosi getti di gas in una regione di formazione stellare. Questo fornirebbe importanti conferme ai modelli che descrivono la nascita delle stelle. La scoperta è stata compiuta utilizzando alcune immagini della Nebulosa Serpente realizzate con NirCam, strumento a bordo del telescopio Webb. Lo studio è in corso di pubblicazione su The Astrophysical Journal
Arborimus Taylor 1915
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Arborimus

description: Arborimus Taylor, 1915. Proc. California Acad. Sci., ser. 4, 5:119. TYPE SPECIES: Phenacomys longicaudus True, 1890. SYNONYMS: Paraphenacomys. COMMENTS: Described as a subgenus of Phenacomys and conventionally recognized as such or as a complete synonym (Carleton and Musser, 1984; Hall, 1981; Howell, 1926b). Evidence for generic stature marshalled by Johnson (1968, 1973). Nonetheless, whether Arborimus is most closely related to Phenacomys or to some other arvicoline has not been substantiated with broad taxonomic sampling that includes critical species like albipes. Specific and subspecific classification basically set forth by Howell (1926b) and Hall and Cockrum (1953), as part of Phenacomys, and by Johnson and George (1991).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 504, DOI: 10.5281/zenodo.7353098
description: {"references": ["Carleton, M. D., and G. G. Musser. 1984. Muroid rodents. Pp. 289 - 379, in Orders and families of Recent mammals of the world (S. Anderson and J. K. Jones, Jr., eds.). John Wiley and Sons, New York, 686 pp.", "Hall, E. R. 1981. The mammals of North America. Second ed. John Wiley and Sons, New York, 1: 1 - 600 + 90, 2: 601 - 1181 + 90.", "Howell, A. B. 1926 b. Voles of the genus Phenacomys. North American Fauna, 48: 1 - 66.", "Johnson, M. L. 1968. Application of blood protein electrophoretic studies to problems in mammalian taxonomy. Systematic Zoology, 17: 23 - 30.", "Hall, E. R., and E. L. Cockrum. 1953. A synopsis of the North American microtine rodents. University of Kansas Publications, Museum of Natural History, 5: 373 - 498.", "Johnson, M. L., and S. B. George. 1991. Species limits within the Arborimus longicaudus species-complex (Mammalia: Rodentia) with a description of a new species from California. Contributions in Science, Natural History Museum of Los Angeles County, 429: 1 - 16."]}
Lactobacillus kefiranofaciens
Creators: name: Zheng, Jinshui
name: Wittouck, Stijn
name: Salvetti, Elisa
name: Franz, Charles M. A. P.
name: Harris, Hugh M. B.
name: Mattarelli, Paola
name: O'Toole, Paul W.
name: Pot, Bruno
name: Vandamme, Peter
name: Walter, Jens
name: Watanabe, Koichi
name: Wuyts, Sander
name: Felis, Giovanna E.
name: Gänzle, Michael G.
name: Lebeer, Sarah
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Bacteria
Firmicutes
Bacilli
Lactobacillales
Lactobacillaceae
Lactobacillus
Lactobacillus kefiranofaciens

description: Lactobacilluskefiranofaciens
Lactobacilluskefiranofaciens (ke.fi.ra.no.fa'ci.ens. N.L. neut. n. kefiranum, a polysaccharide of kefir grain, kefiran; L. v. facio, produce; N.L. part. adj. kefiranofaciens, kefiran producing).
Lactobacillus kefiranofaciens produces DL-lactic acid with an excess of D(−)-lactic acid from glucose, fructose, galactose, sucrose, maltose, lactose and raffinose, but not from arabinose, ribose, cellobiose or trehalose [99].
Two subspecies are recognised.
description: Published as part of Zheng, Jinshui, Wittouck, Stijn, Salvetti, Elisa, Franz, Charles M. A. P., Harris, Hugh M. B., Mattarelli, Paola, O'Toole, Paul W., Pot, Bruno, Vandamme, Peter, Walter, Jens, Watanabe, Koichi, Wuyts, Sander, Felis, Giovanna E., Gänzle, Michael G. & Lebeer, Sarah, 2020, A taxonomic note on the genus Lactobacillus: Description of 23 novel genera, emended description of the genus Lactobacillus Beijerinck 1901, and union of Lactobacillaceae and Leuconostocaceae, pp. 2782-2858 in International Journal of Systematic and Evolutionary Microbiology 70 on page 2798, DOI: 10.1099/ijsem.0.004107, http://zenodo.org/record/4730536
"susy.371381.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Knowledge Graph-basierte Forschungsdatenintegration in NFDI4Culture
Creators: name: Bruns, Sasha
name: Fliegel, Heike
name: Posthumus, Etienne
name: Sack, Harald
name: Schrade, Torsten
name: Tietz, Tabea
Publisher: name: Zenodo
Year: 2023
Subjects: Knowledge Graph, Data Integration, Semantic Web, Linked Open Data, FAIR, Research Data

description: Presentation given at the DHd2023 conference about the current state, next steps and future plans for data integration and data federation based on the NFDI4Culture Knowledge Graph. Also featuring details on the latest developments around the Culture Ontology and the Culture Graph Interchange Format (CGIF).
description: Funded by the German Research Foundation (DFG) – 441958017 (NFDI4Culture)
Stein-based preconditioners for weak-constraint 4D-var
Creators: name: Palitta, Davide
name: Tabeart, Jemima M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Algorithms for data assimilation try to predict the most likely state of a dynamical system by combining information from observations and prior models. Variational approaches, such as the weak-constraint four-dimensional variational data assimilation formulation considered in this problem, can ultimately be interpreted as a minimization problem. One of the main challenges of such a formulation is the solution of large linear systems of equations which arise within the inner linear step of the adopted nonlinear solver. Depending on the adopted approach, these linear algebraic problems amount to either a saddle point linear system or a symmetric positive definite (SPD) one. Both formulations can be solved by means of a Krylov method, like GMRES or CG, that needs to be preconditioned to ensure fast convergence in terms of the number of iterations. In this paper we illustrate novel, efficient preconditioning operators which involve the solution of certain Stein matrix equations. In addition to achieving better computational performance, the latter machinery allows us to derive tighter bounds for the eigenvalue distribution of the preconditioned linear system for certain problem settings. A panel of diverse numerical results displays the effectiveness of the proposed methodology compared to current state-of-the-art approaches.
Formato del Proyecto Memoria de Odontología de la Universidad de Talca
Creators: name: Rivera, César
Publisher: name: Zenodo
Year: 2022
Subjects: proyecto memoria
odontología Universidad de Talca

description: Formato del informe escrito del Proyecto Memoria de la Facultad de Odontología de la Universidad de Talca, para su utilización a partir del año 2022.
description: Documento que puede servir como plantilla para la redacción del Proyecto de Memoria de la Escuela de Odontología de la Universidad de Talca. Los títulos, subtítulos y secciones están formateados para crear un Índice de contenidos automático con Microsoft Word.
Light front distribution of the chiral condensate
Creators: name: Chang, Lei
name: Roberts, Craig D.
name: Schmidt, Sebastian M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The pseudoscalar projection of the pion's Poincare'-covariant Bethe-Salpeter amplitude onto the light-front may be understood to provide the probability distribution of the chiral condensate within the pion. Unlike the parton distribution amplitudes usually considered and as befitting a collective effect, this condensate distribution receives contributions from all Fock space components of the pion's light-front wave-function. We compute this condensate distribution using the Dyson-Schwinger equation (DSE) framework and show the result to be a model-independent feature of quantum chromodynamics (QCD). Our analysis establishes that this condensate is concentrated in the neighbourhood of the boundaries of the distribution's domain of support. It thereby confirms the dominant role played by many-particle Fock states within the pion's light-front wave function in generating the chiral condensate on the light-front and verifies that light-front longitudinal zero modes do not play a material role in that process.
description: 5 pages, 1 figure. To appear in Phys. Lett. B
"susy.371382.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Arborimus albipes
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Arborimus
Arborimus albipes

description: Arborimus albipes (Merriam, 1901). Proc. Biol. Soc. Washington, 14: 125. TYPE LOCALITY: USA, California, Humboldt Co., Humboldt Bay, redwood forest near Arcata. DISTRIBUTION: Pacific coastal zone south of Columbia River, from W Oregon to extreme NW California, USA. COMMENTS: More generalized terrestrial form and habits have suggested a closer relationship to Phenacomys intermedius (e.g., Hall, 1981, placed albipes and intermedius together in subgenus Phenacomys). Johnson and Maser (1982) enumerated character states that instead support closer congruence of albipes with species of Arborimus. However, see Repenning and Grady (1988), who diagnosed the subgenus Paraphenacomys of Phenacomys to contain albipes, which they viewed as more distantly related to the sister species intermedius and longicaudus.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on pages 504-505, DOI: 10.5281/zenodo.7353098
description: {"references": ["Hall, E. R. 1981. The mammals of North America. Second ed. John Wiley and Sons, New York, 1: 1 - 600 + 90, 2: 601 - 1181 + 90.", "Johnson, M. L., and C. Maser. 1982. Generic relationships of Phenacomys albipes. Northwest Science, 56: 17 - 19.", "Repenning, C. A., and F. M. Grady. 1988. The microtine rodents of the Cheetah Room Fauna, Hamilton Cave, West Virginia, and the spontaneous origin of Synaptomys. United States Geological Survey Bulletin, 1853: 1 - 32."]}
Onde di metano sulle rive di Titano
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2024

Le rive dei laghi e dei mari di Titano, la luna più grande di Saturno, mostrano segni di erosione dovuta probabilmente all’attività ondosa delle distese liquide di idrocarburi che si trovano sul satellite. È la conclusione a cui è giunto un gruppo di ricerca del Mit dopo aver sviluppato modelli di erosione con meccanismi analoghi ai laghi terrestri e averli confrontati con le immagini riprese dalla sonda Cassini
General relativity effects in precision spin experimental tests of fundamental symmetries
Creators: name: Vergeles, Sergey N.
name: Nikolaev, Nikolai N.
name: Obukhov, Yuri N.
name: Silenko, Alexander J.
name: Teryaev, Oleg V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: A search for the $P$- and $CP(T)$-violating electric dipole moments (EDM) of atoms, particles and nuclei with sensitivity up to $10^{-15}$ in units of magnetic dipole moments, allowed by all discrete symmetries, is one of the topical problems of modern physics. According to Sakharov, $CP$-violation is one of the three key criteria of baryogenesis in generally accepted paradigm of the Big Bang cosmology. All three criteria are supported by the Standard Model (SM), but it fails to describe the observed baryon asymmetry of the Universe. This is regarded a strong argument in favor of existence of $CP$-symmetry breaking mechanisms beyond minimal SM, which can lead to measurable EDMs of atoms, particles and nuclei. Direct searches for EDM of charged particles and nuclei are possible only in storage rings (COSY, NICA). After successful studies by the JEDI collaboration at the COSY synchrotron, at the forefront is a search for the proton EDM in an electrostatic storage ring with the proton spin frozen at the magic energy with projected sensitivity $d_p\sim 10^{-29}\,e\cdot$cm. Following a brief introduction to the $CP$-violation physics and the baryogenesis, the review presents a detailed discussion of significant contributions to the spin dynamics from the terrestrial gravity along with the new effects of Earth's rotation in ultrasensitive searches for the EDM of charged particles and neutrons. Quite remarkably, for the projected sensitivity to the proton EDM, these false EDM effects can by one to two orders of magnitude exceed the signal of the proton EDM, and become comparable to an EDM contribution in experiments with ultracold neutrons. We also discuss the role of a precessing spin as a detector of the axion-like dark matter, and consider applications of the quantum gravitational anomalies to the dense matter hydrodynamics and the spin phenomena in the non-central nuclear collisions.
description: 48 pages, no figures, Revtex, minor editing with misprints removed, reference list updated, abstract shortened to fit arxiv limit
Soft gamma-ray polarimetry with COSI using maximum likelihood analysis
Creators: name: Tomsick, John A.
name: Lowell, Alexander
name: Lazar, Hadar
name: Sleator, Clio
name: Zoglauer, Andreas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Measurements of the linear polarization of high-energy emission from pulsars, accreting black holes, and gamma-ray bursts (GRBs) provide an opportunity for constraining the emission mechanisms and geometries (e.g., of the accretion disk, jet, magnetic field, etc.) in the sources. For photons in the soft (MeV) gamma-ray band, Compton scattering is the most likely interaction to occur in detectors. Compton telescopes detect multiple interactions from individual incoming photons, allowing for scattering angles to be measured. After many photons are detected from a source, the distribution of azimuthal angles provides polarization information. While the standard method relies on binning the photons to produce and fit an azimuthal scattering angle distribution, improved polarization sensitivity is obtained by using additional information to more accurately weight each event's contribution to the likelihood statistic. In this chapter, we describe the Compton Spectrometer and Imager (COSI) and its capabilities for polarization measurements. We also describe the maximum likelihood technique, its application to COSI data analysis, and plans for its future use.
description: 24 pages, 8 figures, accepted for the Handbook of X-ray and Gamma-ray Astrophysics
"susy.371383.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Nearby Young Stars and Young Moving Groups
Creators: name: Kastner, Joel H.
name: Principe, David A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The past two decades have seen dramatic progress in our knowledge of the population of stars of age $\lesssim$150 Myr that lie within $\sim$100 pc of the Sun. Most such stars are found in loose kinematic groups ("nearby young moving groups"; NYMGs). The proximity of NYMGs and their members facilitates studies of the X-ray properties of coeval groups of pre-main sequence (pre-MS) stars as well as of individual pre-MS systems. In this review, we focus on how NYMG X-ray studies provide unique insight into the early evolution of stellar magnetic activity, the X-ray signatures of accretion, and the irradiation and dissipation of protoplanetary disks by high-energy photons originating with their host pre-MS stars. We discuss the likely impacts of the next generation of X-ray observing facilities on these aspects of the study of NYMGs and their members.
description: To appear in Springer's "Handbook of X-ray and Gamma-ray Astrophysics" (eds. A. Santangelo and C. Bambi), Section "The Sun, Stars & Planets" (eds. G. Micela & B. Stelzer)
Chang’e 6 è rientrata sulla Terra con rocce lunari
Creators: Redazione Ansa
Publisher: name: Media Inaf
Year: 2024

La capsula è atterrata oggi a Siziwang Banner, nella Mongolia interna, alle 8:07 ora italiana. La Cina diventa così il primo paese al mondo ad aver portato sulla Terra campioni dal lato nascosto della Luna.
Nucleon spin structure at very high-x
Creators: name: Roberts, Craig D.
name: Holt, Roy J.
name: Schmidt, Sebastian M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Dyson-Schwinger equation treatments of the strong interaction show that the presence and importance of nonpointlike diquark correlations within the nucleon are a natural consequence of dynamical chiral symmetry breaking. Using this foundation, we deduce a collection of simple formulae, expressed in terms of diquark appearance and mixing probabilities, from which one may compute ratios of longitudinal-spin-dependent u- and d-quark parton distribution functions on the domain x =1. A comparison with predictions from other approaches plus a consideration of extant and planned experiments shows that the measurement of nucleon longitudinal spin asymmetries on x =1 can add considerably to our capacity for discriminating between contemporary pictures of nucleon structure.
description: 6 pages, 1 table, 3 figures. To appear in Phys. Lett. B
Nuclear structure properties of Si and P isotopes with the microscopic effective interactions
Creators: name: Choudhary, Priyanka
name: Srivastava, Praveen C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the present work, we have reported comprehensive study of the $sd$-shell nuclei Si and P with neutron number varying from $N = 9$ to $N = 20$ using the microscopic effective valence shell interactions, namely, N3LO, JISP16 and DJ16A. These effective $sd$-shell interactions are developed using the \textit{ab initio} no-core shell model wave functions and the Okubo-Lee-Suzuki transformation method. For comparison, we have also performed shell model calculations with the empirical USDB interaction. Energy spectra and electromagnetic properties of these isotopic chains have been studied. Theoretically calculated shell model results are compared with the available experimental data, to check the predictive strength of these microscopic interactions. It is found that the binding energies of the ground states are better reproduced with the DJ16A interaction as compared to other microscopic interactions and a proton subshell closure at $Z=14$ is obtained in Si. Spin-tensor decomposition of two-body interaction is presented to understand the contributions from central, vector and tensor components into these interactions. Spectroscopic strengths of $^{23}$Al($d$,$n$)$^{24}$Si are examined for the newly performed experiment at NSCL.
description: 28 pages, 7 figures, 3 tables
"susy.371384.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
L’entanglement misura la rotazione terrestre
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Un gruppo di ricercatori dell'Università di Vienna ha condotto un esperimento pionieristico che ha permesso di misurare l'effetto della rotazione della Terra su fotoni entangled. Il lavoro, pubblicato su Science Advances, rappresenta un risultato significativo che spinge i confini della sensibilità alla rotazione nei sensori basati sull'entanglement quantistico. Ne abbiamo parlato con il primo autore, Raffaele Silvestri
Arborimus longicaudus
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Arborimus
Arborimus longicaudus

description: Arborimus longicaudus (True, 1890). Proc. U. S. Natl. Mus., 13:303. TYPE LOCALITY: USA, Oregon, Coos Co., Marshfield. DISTRIBUTION: Pacific coast of W Oregon, north of Klamath Mtns, USA. SYNONYMS: silvicola. COMMENTS: Although Howell (1926b) recognized silvicola as a nominal species, subsequent research has favored its synonymy under A. longicaudus (Johnson, 1968), where it has been maintained as a subspecies (Hall, 1981; Johnson and George, 1991). Formerly included populations in California assigned to the new species A. porno (see next account).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 505, DOI: 10.5281/zenodo.7353098
description: {"references": ["Howell, A. B. 1926 b. Voles of the genus Phenacomys. North American Fauna, 48: 1 - 66.", "Johnson, M. L. 1968. Application of blood protein electrophoretic studies to problems in mammalian taxonomy. Systematic Zoology, 17: 23 - 30.", "Hall, E. R. 1981. The mammals of North America. Second ed. John Wiley and Sons, New York, 1: 1 - 600 + 90, 2: 601 - 1181 + 90.", "Johnson, M. L., and S. B. George. 1991. Species limits within the Arborimus longicaudus species-complex (Mammalia: Rodentia) with a description of a new species from California. Contributions in Science, Natural History Museum of Los Angeles County, 429: 1 - 16."]}
Cinque nane brune per la coppia Gaia e Gravity
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Rilevare oggetti deboli vicino a stelle luminose è incredibilmente difficile. Eppure, combinando i dati del telescopio spaziale Gaia con le eccellenti capacità dello strumento Gravity dell'Eso, gli scienziati ci sono riusciti, rilevando il segnale di compagne finora sconosciute di otto stelle. Questa tecnica apre la strada alla possibilità di catturare immagini di pianeti che orbitano vicino alle loro stelle ospiti
"susy.371385.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Jwst osserva antichissimi ammassi stellari
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2024

Gli ammassi stellari osservati con il telescopio spaziale James Webb in una galassia a soli 460 milioni di anni dopo il Big Bang potrebbero essere i progenitori degli ammassi globulari che popolano le galassie odierne. È il risultato di un gruppo di ricerca internazionale a cui partecipano anche Eros Vanzella e Matteo Messa dell’Istituto nazionale di astrofisica, pubblicato oggi su Nature
Deuteron electromagnetic form factors in a renormalizable formulation of chiral effective field theory
Creators: name: Epelbaum, E.
name: Gasparyan, A. M.
name: Gegelia, J.
name: Schindler, M. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the deuteron electromagnetic form factors in a modified version of Weinberg's chiral effective field theory approach to the two-nucleon system. We derive renormalizable integral equations for the deuteron without partial wave decomposition. Deuteron form factors are extracted by applying the Lehmann-Symanzik-Zimmermann reduction formalism to the three-point correlation function of deuteron interpolating fields and the electromagnetic current operator. Numerical results of a leading-order calculation with removed cutoff regularization agree well with experimental data.
description: 9 pages, 2 figures
"susy.371386.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Nöther Currents, Black Hole Entropy Universality and CFT Duality in Conformal Weyl Gravity
Creators: name: Aggarwal, Daksh
name: Chang, Dominic
name: Helmers, Quentin Dancewicz
name: Sivrioglu, Nesibe
name: Ram-Mohan, L. R.
name: Rodriguez, Leo
name: Rodriguez, Shanshan
name: Suleiman, Raid
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we study black hole entropy universality within the Conformal Weyl gravity paradigm. We do this by first computing the entropy of specific vacuum and non-vacuum solutions, previously unexplored in Conformal Weyl gravity via both the Nöther current method and Wald's entropy formula. For the vacuum case, we explore the near horizon near extremal Kerr metric, which is also a vacuum solution to Conformal Weyl gravity and not previously studied in this setting. For the non-vacuum case we couple the conformal Weyl gravity field equations to a near horizon (linear) $U(1)$ gauge potential and analyze the respective found solutions. We highlight the non-universality of black hole entropy between our studied black hole solutions of varying symmetries. However despite non-universality, the respective black hole entropies are in congruence with Wald's entropy formula for the specific gravity theory. Finally and despite non-universality, we comment on the construction of a near horizon CFT dual to one of our unique non-vacuum solutions. Due to the non-universality, we must introduce a parameter (similarly to entropy calculations in LQG) which we also call $γ$ and relating to the Weyl anomaly coefficient. The construction follows an $AdS_2/CFT_1$ correspondence in the near horizon, which enables the computation of the full asymptotic symmetry group of the chosen non-vacuum conformal Weyl black hole and its near horizon quantum CFT dual. We conclude with a discussion and outlook for future work.
description: 21 pages, no figures. References added. Minor revisions and edits based upon comments and feedback
The XMM-Newton EPIC X-ray Light Curve Analysis of WR 6
Creators: name: Ignace, R.
name: Gayley, K. G.
name: Hamann, W. R.
name: Huenemoerder, D. P.
name: Oskinova, L. M.
name: Pollock, A. M. T.
name: McFall, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We obtained four pointings of over 100 ks each of the well-studied Wolf-Rayet star WR 6 with the XMM-Newton satellite. With a first paper emphasizing the results of spectral analysis, this follow-up highlights the X-ray variability clearly detected in all four pointings. However, phased light curves fail to confirm obvious cyclic behavior on the well-established 3.766 d period widely found at longer wavelengths. The data are of such quality that we were able to conduct a search for "event clustering" in the arrival times of X-ray photons. However, we fail to detect any such clustering. One possibility is that X-rays are generated in a stationary shock structure. In this context we favor a co-rotating interaction region (CIR) and present a phenomenological model for X-rays from a CIR structure. We show that a CIR has the potential to account simultaneously for the X-ray variability and constraints provided by the spectral analysis. Ultimately, the viability of the CIR model will require both intermittent long-term X-ray monitoring of WR 6 and better physical models of CIR X-ray production at large radii in stellar winds.
description: to appear in ApJ
Tre potenziali super-Terre attorno a una stella vicina
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2024

In orbita attorno alla stella arancione Hd 48948, situata a circa 55 anni luce da noi, sono state scoperte grazie allo spettrografo Harps-N tre candidate super-Terre. Si tratta del sistema planetario a noi più vicino, fra quelli con una stella ospite simile al Sole, nel quale sia presente una super-Terra in zona abitabile. Fra gli autori dello studio, guidato da Shweta Dalal dell’Università di Exeter, c’è anche Luca Malavolta dell’Università di Padova
Quality Improvement in Engineering : An Opinion Letter
Creators: name: Jayaswal, Kuldeep
Publisher: name: Zenodo
Year: 2018
Subjects: subject: Quality improvement in engineering; educational improvement;Industrial need for engineers;Quality improvement of engineering students
subject: 2

description: This opinion letter mainly targets the engineering curriculum in the present scenario. Various banes and boons of existing engineering curriculum on engineering graduates have been reported. Through this letter, the author has expressed his opinion for the improvement of the present engineering education system that will be helpful for youth in getting jobs and also help industries in hiring quality technocrats.
"susy.371387.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Sensitivity of the MnTe valence band to orientation of magnetic moments
Creators: name: Junior, Paulo E. Faria
name: de Mare, Koen A.
name: Zollner, Klaus
name: Erlingsson, Sigurdur I.
name: van Schilfgaarde, Mark
name: Vyborny, Karel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An effective model of the hexagonal (NiAs-structure) manganese telluride valence band in the vicinity of the A-point of the Brillouin zone is derived. It is shown that while for the usual antiferromagnetic order (magnetic moments in the basal plane) band splitting at A is small, their out-of-plane rotation enhances the splitting dramatically (to about 0.5 eV). We propose extensions of recent experiments (Moseley et al., Phys. Rev. Materials 6, 014404) where such inversion of magnetocrystalline anisotropy has been observed in Li-doped MnTe, to confirm this unusual sensitivity of a semiconductor band structure to magnetic order.
description: 5+epsilon pages, 4 figures; to appear in PRB
"susy.371388.pMSSM_M3muM1lsp.slha" of "Search for new phenomena with large jet multiplicities and missing transverse momentum using large-radius jets and flavour-tagging at ATLAS in 13 TeV $pp$ collisions"
Creators: name: ATLAS Collaboration
Publisher: name: HEPData
Year: 2017

description: SLHA file for the pMSSM signal in Figure 6a
description: CERN-LHC. A search is presented for particles that decay producing a large jet multiplicity and invisible particles. The event selection applies a veto on the presence of isolated electrons or muons and additional requirements on the number of $b$-tagged jets and the scalar sum of masses of large-radius jets. Having explored the full ATLAS 2015--2016 dataset of LHC proton--proton collisions at $\sqrt{s}$=13 TeV, which corresponds to 36.1~fb$^{-1}$ of integrated luminosity, no evidence is found for physics beyond the Standard Model.The results are interpreted in the context of simplified models inspired by R-parity-conserving and R-parity-violating supersymmetry, where gluinos are pair-produced. More generic models within the phenomenological minimal supersymmetric Standard Model are also considered.
Doppio passaggio in coincidenza con l’Asteroid Day
Creators: Albino Carbognani
Publisher: name: Media Inaf
Year: 2024

Fra il 27 e il 29 giugno due asteroidi si troveranno alla minima distanza dalla Terra: 2011 UL21 e 2024 MK. Il primo, di dimensioni chilometriche, si troverà ad alcuni milioni di km dalla Terra, mentre il secondo – circa dieci volte più piccolo – passerà all'altezza dell'orbita lunare. Entrambi diventeranno molto luminosi per essere dei piccoli asteroidi e, pur restando invisibili a occhio nudo, potranno essere visti anche con piccoli telescopi e fotografati con modesti teleobiettivi
Meno di 24 ore al decollo del satellite Svom
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Domani, 22 giugno 2024, alle 9:00 ora italiana (le 15:00 a Xichang) un razzo cinese Long March 2C lancerà in orbita il satellite franco-cinese Svom (acronimo di Space-based multi-band astronomical Variable Objects Monitor), dedicato allo studio dei lampi gamma, uno dei fenomeni più affascinanti e violenti dell'universo. Svom orbiterà a un'altitudine di 625 chilometri, con un periodo orbitale di 96 minuti