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Nuclear Theory·nucl-th

Friday·January 28, 2022

2 papers—1 primary·1 cross-listed

All2Primary1Cross-lists1
  1. 01

    [Submitted on 27 Jan 2022]

    The Role of Baryon Structure in Neutron Stars

    Theo F. Motta🇦🇺 · Anthony W. Thomas🇦🇺

    Understanding the equation of state of dense nuclear matter is a fundamental challenge for nuclear physics. It is especially timely and interesting challenge as we have reached a period where neutron stars, which contain the most dense nuclear matter in the Universe, are now being studied in completely new ways, from gravitational waves to satellite based telescopes. We review the theoretical approaches to calculating this equation of state which involve a change in the structure of the baryons.

    Comments:
    published in Modern Physics Letters A
    Subjects:
    Nuclear Theory (nucl-th)
    arXiv:
    2201.11549 [pdf]
    Mod.Phys.Lett.A(2022)·22 citations
  2. 02

    [Submitted on 27 Jan 2022] (cross-list from hep-ph)

    Pion Photoproduction off Nucleon with Hamiltonian Effective Field Theory

    Dan Guo🇨🇳 · Zhan-Wei Liu🇨🇳

    We analyze the process in the negative parity channel with Hamiltonian effective filed theory which is successful in studying the nucleon resonances associated with the meson-nucleon scattering and lattice QCD simulations. We provide the scattering amplitude of pion photoproduction and extract the electric dipole amplitudes . The triquark component in is important for improving the consistence between our results and the experimental data.

    Comments:
    10 pages, 4 figures; published version. We thank the referee for the useful improvement!
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    2201.11555 [pdf]
    PRD(2022)·15 citations

Affiliations

first authorsco-authorsvia INSPIRE