Thu·Nov 4, 2021Thursday·November 4, 2021

1. 01*

   Cosmic ray measurements using the ISMRAN setup in a non-reactor environment

   S. P. Behera🇮🇳 · R. Sehgal🇮🇳 · R. Dey🇮🇳 · P. K. Netrakanti🇮🇳 · D. K. Mishra🇮🇳 · V. Jha🇮🇳 · L. M. Pant🇮🇳

   The cosmic rays data collected using a large area plastic scintillator array ISMRAN (Indian Scintillator Matrix for Reactor AntiNeutrino) are presented. The data collected serve as a useful benchmark of cosmogenic background in a non-reactor environment for the future measurements of electron-antineutrinos to be performed using the ISMRAN setup. The zenith angle distribution of the atmospheric muons has been measured and compared with Monte Carlo expectations. The detector setup was further used to measure the lifetime distribution of stopped muons and extract their rates inside the detector matrix. The measured spectra of decaying muons and associated electrons show a good agreement with the MC simulations performed through GEANT4 simulation.

   nucl-exphysics.ins-detAstropart.Phys.(2022)·3 citations
2. 02*

   Directed flow of charged particles within idealized viscous hydrodynamics at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider

   Ze-Fang Jiang🇨🇳 · C. B. Yang🇨🇳 · Qi Peng🇨🇳

   Following the Boz$\dot{\text{e}}$k-Wyskiel parametrization tilted initial condition, an alternative way to construct a longitudinal tilted fireball based on the Glauber collision geometry is presented. This longitudinal tilted initial condition combined with the Ideal-CLVisc (3 + 1)D hydrodynamic model, a nonvanishing directed flow coefficient $v_1$ in a wide rapidity range is observed. After comparing the model's results with experimentally observed data of directed flow coefficient $v_1(\eta )$ from $\sqrt{s_{NN}}$ = 200 GeV Cu + Cu, Au + Au collisions at RHIC energy to $\sqrt{s_{NN}}$ = 2.76 TeV and $\sqrt{s_{NN}}$ = 5.02 TeV Pb + Pb collisions at the LHC energy. We find that the directed flow measurements in heavy-ion collisions can set strong constraints on the imbalance of forward and backward incoming nuclei and on the magnitude asymmetry of pressure gradients along the $x$ direction.

   ↳ hep-phnucl-exnucl-thPRC(2021)·20 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.