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Nuclear Theory·nucl-th

Friday·August 28, 2020

5 papers—2 primary·3 cross-listed

All5Primary2Cross-lists3
  1. 01

    [Submitted on 26 Aug 2020]

    Learning about the QCD medium using electromagnetic and weak probes

    Gojko Vujanovic🇺🇸

    Recent theoretical developments concerning radiation of electromagnetic and weak probes in ultra-relativistic heavy-ion collisions is overviewed. These proceedings focus on electromagnetic probes and briefly cover weak probes. An outlook regarding the future use of electromagnetic probes is formulated whereby a quantitative Bayesian comparison, simultaneously employing electromagnetic and hadronic calculations of experimental observables against data, is highlighted as a path towards a better understanding of the properties of the QCD medium.

    Comments:
    8 pages, 2 figures, Proceedings for the plenary talk given at the 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2020), June 1-5, 2020
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
    arXiv:
    2008.11843 [pdf]
    PoS(2021)·0 citations
  2. 02

    [Submitted on 27 Aug 2020]

    Neutron-rich calcium isotopes within realistic Gamow shell model calculations with continuum coupling

    J. G. Li · B. S. Hu · Q. Wu · Y. Gao · S. J. Dai · F. R. Xu

    Based on the realistic nuclear force of the high-precision CD-Bonn potential, we have performed comprehensive calculations for neutron-rich calcium isotopes using the Gamow shell model (GSM) which includes resonance and continuum. The realistic GSM calculations produce well binding energies, one- and two-neutron separation energies, predicting that Ca is the heaviest bound odd isotope and Ca is the dripline nucleus. Resonant states are predicted, which provides useful information for future experiments on particle emissions in neutron-rich calcium isotopes. Shell evolutions in the calcium chain around neutron numbers \textit{N} = 32, 34 and 40 are understood by calculating effective single-particle energies, the excitation energies of the first states and two-neutron separation energies. The calculations support shell closures at Ca (\textit{N} = 32) and Ca (\textit{N} = 34) but show a weakening of shell closure at Ca (\textit{N} = 40). The possible shell closure at Ca (\textit{N} = 50) is predicted.

    Comments:
    24 pages, 6 figures
    Subjects:
    Nuclear Theory (nucl-th)
    arXiv:
    2008.11948 [pdf]
    PRC(2020)·31 citations

Affiliations

first authorsco-authorsvia INSPIRE