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Nuclear Theory·nucl-th

Tuesday·July 26, 2022

6 papers—3 primary·3 cross-listed

All6Primary3Cross-lists3
  1. 01

    Novel relaxation time approximation: a consistent calculation of transport coefficients with QCD-inspired relaxation times

    Gabriel S. Rocha🇧🇷 · Gabriel S. Denicol🇧🇷 · Maurício N. Ferreira🇧🇷 · Jorge Noronha🇺🇸

    We use a novel formulation of the relaxation time approximation to consistently calculate the bulk and shear viscosity coefficients using QCD-inspired energy-dependent relaxation times and phenomenological thermal masses obtained from fits to lattice QCD thermodynamics. The matching conditions are conveniently chosen to simplify the computations.

    nucl-thhep-phActa Phys.Polon.Supp.(2023)·3 citations
  2. 02

    Dynamical development of proton cumulants and correlation functions in Au+Au collisions at GeV from a multiphase transport model

    Qian Chen🇨🇳 · Guo-Liang Ma🇨🇳

    Higher-order cumulants of the distributions of conserved charges, such as net-baryon number, are sensitive to the quantum chromodynamics(QCD) phase transition and the QCD critical point. We calculate the cumulants and correlation functions of proton, antiproton, and net-proton multiplicity distributions in Au+Au collisions at GeV using a multiphase transport model(AMPT). The AMPT model can basically describe the trends of cumulants, cumulant ratios, (normalized) correlation functions of the proton and net-proton measured by the STAR experiment. The multiproton (baryon) correlations in the AMPT model are consistent with the expectation from baryon number conservation. We demonstrate that multiproton (baryon) correlations suffer the dynamical evolution of heavy-ion collisions. Our results provide a baseline for searching for the possible critical behaviors at the critical end point in relativistic heavy-ion collisions.

    nucl-thhep-phnucl-exPRC(2022)·11 citations
  3. 03

    Microscopic nuclear equation of state at finite temperature and stellar stability

    Hong-Ming Liu · Jing Zhang · Zeng-Hua Li · Jin-Biao Wei · G. F. Burgio · H.-J. Schulze

    A microscopic nuclear equation of state compatible with all current astrophysical constraints constructed within the Brueckner-Hartree-Fock formalism is presented and extended in a consistent way to finite temperature. The effects of finite temperature on the properties of neutron stars are studied in detail and a universal relation regarding stellar stability is proposed.

    nucl-thPRC(2022)·20 citations

Affiliations

first authorsco-authorsvia INSPIRE