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Showing 2020Show all

328 papers · 1 filter

cond-mat.mes-hall2020★ 3 cited

Topological charge distributions of an interacting two-spin system

György Frank, Dániel Varjas, Péter Vrana +2

Quantum systems are often described by parameter-dependent Hamiltonians. Points in parameter space where two levels are degenerate can carry a topological charge. Here we theoretic…

hep-lat2020★ 18 cited

Reconfinement, localization and thermal monopoles in trace-deformed Yang-Mills theory

Claudio Bonati, Marco Cardinali, Massimo D'Elia +2

We study, by means of numerical lattice simulations, the properties of the reconfinement phase transition taking place in trace deformed Yang-Mills theory defined on $\math…

cond-mat.mtrl-sci2020★ 16 cited

On the dynamics of curved dislocation ensembles

István Groma, Péter Dusán Ispánovity, Thomas Hochrainer

To develop a dislocation-based statistical continuum theory of crystal plasticity is a major challenge of materials science.During the last two decades such a theory has been devel…

cs.AI2020★ 1 cited

Knowledge Graphs Evolution and Preservation -- A Technical Report from ISWS 2019

Nacira Abbas, Kholoud Alghamdi, Mortaza Alinam +71

One of the grand challenges discussed during the Dagstuhl Seminar "Knowledge Graphs: New Directions for Knowledge Representation on the Semantic Web" and described in its report is…

astro-ph.SR2020★ 45 cited

TESS observations of Cepheid stars: first light results

E. Plachy, A. Pál, A. Bódi +33

We present the first analysis of Cepheid stars observed by the TESS space mission in Sectors 1 to 5. Our sample consists of 25 pulsators: ten fundamental mode, three overtone and t…

nucl-ex2020★ 27 cited

Measurements of and cross sections and their ratios in collisions at RHIC

STAR Collaboration, J. Adam, L. Adamczyk +356

We report on the and differential and total cross sections as well as the / and / cross-section ratios measured by the STAR experiment a…

astro-ph.SR2020

Testing and Validating Two Morphological Flare Predictors by Logistic Regression Machine Learning

M. B. Korsos, R. Erdelyi, J. Liu +1

Whilst the most dynamic solar active regions (ARs) are known to flare frequently, predicting the occurrence of individual flares and their magnitude, is very much a developing fiel…

astro-ph.EP2020★ 2 cited

On the oligarchic growth in a fully interacting system

Z. Dencs, Zs. Regaly

Protoplanets develop via collisions between planetesimals and planetary embryos in the final assembly stage of planet formation. The efficiency of the planet formation can be defin…

cond-mat.mes-hall2020★ 2 cited

Current distribution in magnetically confined 2DEG: semiclassical and quantum mechanical treatment

Róbert Németh, Zoltán Kaufmann, József Cserti

In the ballistic regime we study both semiclassically and quantum mechanically the electron's dynamics in two-dimensional electron gas (2DEG) in the presence of an inhomogeneous ma…

astro-ph.EP2020★ 9 cited

The 2017 May 20 stellar occultation by the elongated centaur (95626) 2002 GZ

P. Santos-Sanz, J. L. Ortiz, B. Sicardy +56

We predicted a stellar occultation of the bright star Gaia DR1 4332852996360346368 (UCAC4 385-75921) (m= 14.0 mag) by the centaur 2002 GZ for 2017 May 20$^{\rm th}…

astro-ph.SR2020★ 43 cited

The asymmetric inner disk of the Herbig Ae star HD 163296 in the eyes of VLTI/MATISSE: evidence for a vortex?

J. Varga, M. Hogerheijde, R. van Boekel +133

Context. The inner few au region of planet-forming disks is a complex environment. High angular resolution observations have a key role in understanding the disk structure and the…

astro-ph.SR2020★ 340 cited

Gaia Early Data Release 3: The Gaia Catalogue of Nearby Stars

Gaia Collaboration, R. L. Smart, L. M. Sarro +420

We produce a clean and well-characterised catalogue of objects within 100\,pc of the Sun from the \G\ Early Data Release 3. We characterise the catalogue through comparisons to the…

astro-ph.GA2020★ 112 cited

Gaia Early Data Release 3: Acceleration of the solar system from Gaia astrometry

Gaia Collaboration, S. A. Klioner, F. Mignard +414

Context. Gaia Early Data Release 3 (Gaia EDR3) provides accurate astrometry for about 1.6 million compact (QSO-like) extragalactic sources, 1.2 million of which have the best-quali…

astro-ph.IM2020★ 10 cited

GRBAlpha: A 1U CubeSat mission for validating timing-based gamma-ray burst localization

András Pál, Masanori Ohno, László Mészáros +26

GRBAlpha is a 1U CubeSat mission with an expected launch date in the first half of 2021. It carries a 75 x 75 x 5 mm CsI(Tl) scintillator, read out by a dual-channel multi-pixel ph…

nucl-ex2020★ 111 cited

Global polarization of and hyperons in Au+Au collisions at = 200 GeV

STAR Collaboration, J. Adam, L. Adamczyk +357

Global polarization of and hyperons has been measured for the first time in Au+Au collisions at = 200 GeV. The measurements of the and hy…

astro-ph.HE2020★ 51 cited

Diving below the spin-down limit: Constraints on gravitational waves from the energetic young pulsar PSR J0537-6910

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1589

We present a search for continuous gravitational-wave signals from the young, energetic X-ray pulsar PSR J0537-6910 using data from the second and third observing runs of LIGO and…

gr-qc2020★ 71 cited

All-sky search in early O3 LIGO data for continuous gravitational-wave signals from unknown neutron stars in binary systems

The LIGO Scientific Collaboration, the Virgo Collaboration, R. Abbott +1369

Rapidly spinning neutron stars are promising sources of persistent, continuous gravitational waves. Detecting such a signal would allow probing of the physical properties of matter…

hep-ex2020★ 33 cited

Measurement of transverse single-spin asymmetries of and electromagnetic jets at forward rapidity in 200 and 500 GeV transversely polarized proton-proton collisions

STAR Collaboration, J. Adam, L. Adamczyk +359

The STAR Collaboration reports measurements of the transverse single-spin asymmetry (TSSA) of inclusive at center-of-mass energies () of 200 GeV and 500 GeV in trans…

astro-ph.HE2020★ 24 cited

The NANOGrav 12.5-Year Data Set: Monitoring Interstellar Scattering Delays

Jacob E. Turner, Maura A. McLaughlin, James M. Cordes +33

We extract interstellar scintillation parameters for pulsars observed by the NANOGrav radio pulsar timing program. Dynamic spectra for the observing epochs of each pulsar were used…

hep-ex2020★ 4 cited

Measurement of the Z boson differential production cross section using its invisible decay mode (Z ) in proton-proton collisions at 13 TeV

CMS Collaboration

Measurements of the total and differential fiducial cross sections for the Z boson decaying into two neutrinos are presented at the LHC in proton-proton collisions at a center-of-m…

hep-ph2020

Perturbative RG analysis of the condensate dependence of the axial anomaly in the three flavor linear sigma model

G. Fejos

Coupling of `t Hooft's determinant term is investigated in the framework of the three flavor linear sigma model as a function of the chiral condensate. Using perturbation theory ar…

hep-ex2020★ 108 cited

Search for supersymmetry in final states with two oppositely charged same-flavor leptons and missing transverse momentum in proton-proton collisions at 13 TeV

CMS Collaboration

A search for phenomena beyond the standard model in final states with two oppositely charged same-flavor leptons and missing transverse momentum is presented. The search uses a dat…

nucl-ex2020★ 16 cited

Comparison of transverse single-spin asymmetries for forward production in polarized , and collisions at nucleon pair c.m. energy GeV

STAR Collaboration, J. Adam, L. Adamczyk +358

The STAR Collaboration reports a measurement of the transverse single-spin asymmetries, , for neutral pions produced in polarized proton collisions with protons (), with…

hep-ex2020★ 281 cited

Electron and photon reconstruction and identification with the CMS experiment at the CERN LHC

CMS Collaboration

The performance is presented of the reconstruction and identification algorithms for electrons and photons with the CMS experiment at the LHC. The reported results are based on pro…