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Nuclear Theory·nucl-th

Thursday·February 18, 2021

2 papers—1 primary·1 cross-listed

All2Primary1Cross-lists1
  1. 01

    [Submitted on 17 Feb 2021]

    Exploring the QCD phase diagram with fluctuations

    Volker Koch🇺🇸 · Volodymyr Vovchenko🇺🇸

    We report on recent progress concerning theoretical description of event-by-event fluctuations in heavy-ion collisions. Specifically we discuss a new Cooper-Frye particlization routine -- the subensemble sampler -- which is designed to incorporate effects of global conservation laws, thermal smearing and resonance decays on fluctuation measurements in various rapidity acceptances. First applications of the method to heavy-ion collisions at the LHC energies are presented and further necessary steps to analyze fluctuations from RHIC beam energy scan are outlined.

    Comments:
    13 pages, 3 figures. Prepared for the 60th anniversary of the Cracow School of Theoretical Physics. Contains overview of the material presented in arXiv:2012.09954
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph)
    arXiv:
    2102.08506 [pdf]
    Acta Phys.Polon.B(2021)·1 citation
  2. 02

    [Submitted on 17 Feb 2021] (cross-list from hep-ph)

    scattering and in nuclear matter

    M. Albaladejo🇺🇸 · J. M. Nieves🇪🇸 · L. Tolos🇪🇸

    We study the behaviour of the , also known as , in dense nuclear matter. We begin from a picture in vacuum of the as a purely molecular state, generated as a bound state from a heavy-quark symmetry leading-order interaction between the charmed mesons, and analyze the scattering matrix () inside of the medium. Next, we consider also mixed-molecular scenarios and, in all cases, we determine the corresponding spectral function and the amplitude, with the mesons embedded in the dense environment. We find important nuclear corrections for and the pole position of the resonance, and discuss the dependence of these results on the molecular component in the wave-function. These predictions could be tested in the finite-density regime that can be accessed in the future CBM and PANDA experiments at FAIR.

    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Experiment (hep-ex); High Energy Physics — Theory (hep-th); Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
    arXiv:
    2102.08589 [pdf]
    PRC(2021)·23 citations

Affiliations

first authorsco-authorsvia INSPIRE