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Nuclear Theory·nucl-th

Monday·September 19, 2022

5 papers—2 primary·3 cross-listed

All5Primary2Cross-lists3
  1. 01

    Equation of State and Energy Loss of Hot and Dense Quark-Gluon matter from Holographic Black Holes

    Joaquin Grefa🇺🇸 · Mauricio Hippert🇺🇸 · Jorge Noronha🇺🇸 · Jacquelyn Noronha-Hostler🇺🇸 · Israel Portillo🇺🇸 · Claudia Ratti🇺🇸 · Romulo Rougemont🇧🇷

    By using gravity/gauge correspondence, we construct a holographic model, constrained to mimic the lattice QCD equation of state at zero density, to investigate the temperature and baryon chemical potential dependence of the equation of state. We also obtained the energy loss of light and heavy partons within the hot and dense plasma represented by the heavy quark drag force, Langevin diffusion coefficients and jet quenching parameter at the critical point and across the first-order transition line predicted by the model.

    nucl-thhep-latEPJ Web Conf.(2023)·0 citations
  2. 02

    Finite particle-number description of symmetric nuclear matter with spin excitations of high-momentum pairs induced by tensor force

    Niu Wan · Takayuki Myo · Hiroki Takemoto · Hiroshi Toki · Chang Xu · Hisashi Horiuchi · Masahiro Isaka · Mengjiao Lyu · Qing Zhao

    We study the symmetric nuclear matter using bare nucleon-nucleon () interactions with finite particle-number approach within finite cubic boxes. Due to the correlations originating from bare interaction, two nucleons can be excited to the high-momentum region, leading to the increase of the kinetic energy in nuclear matter. We further consider the spin excitations in the nucleon pairs, where the spin of the two nucleons are changed, and this excitation is important for the tensor correlation. The unitary correlation operator method (UCOM) is used to treat the short-range correlation. The tail correction coming from the neighbouring boxes is also included. We demonstrate the contributions of various excitations of nucleon pairs as well as the tail correction to the total energy at the normal density. We also discuss the effects of UCOM and correlated nucleon pairs on the density dependence of the total energy. We calculate the equations of state of symmetric nuclear matter using two kinds of the Argonne potentials and the results agree with those from other many-body theories. The density dependences of the Hamiltonian components are also shown.

    nucl-thPRC(2022)·1 citation

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first authorsco-authorsvia INSPIRE