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Nuclear Theory·nucl-th

Wednesday·July 25, 2018

5 papers—3 primary·2 cross-listed

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  1. 04

    [Submitted on 24 Jul 2018] (cross-list from hep-ph)

    Charged current quasi elastic scattering of muon anti-neutrino off ^{12}C

    Deepika Grover🇮🇳 · Kapil Saraswat🇮🇳 · Prashant Shukla🇮🇳 · Venktesh Singh🇮🇳

    In this work, we study charged current quasi elastic scattering of muon anti-neutrino off nucleon and nucleus using a formalism based on Llewellyn Smith (LS) model. Parameterizations by Galster et al. are used for electric and magnetic Sach's form factors of nucleons. We use Fermi gas model along with Pauli suppression condition to take into account the nuclear effects in anti-neutrino - nucleus QES. We calculate muon anti-neutrino-p and muon anti-neutrino-^{12}C charged current quasi elastic scattering differential and total cross sections for different values of axial mass M_{A} and compare the results with data from GGM, SKAT, BNL, NOMAD, MINERvA and MiniBooNE experiments. The present theoretical approach gives an excellent description of differential cross section data. The calculations with axial mass M_{A} = 0.979 and 1.05 GeV are compatible with data from most of the experiments.

    Comments:
    07 pages, 09 Figures
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1807.08911 [pdf]
    CPC(2018)·3 citations
  2. 05

    [Submitted on 24 Jul 2018] (cross-list from hep-ph)

    Meson-baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking

    Ghil-Seok Yang🇰🇷 · Hyun-Chul Kim🇰🇷

    We investigate the strong coupling constants for the baryon octet-octet, decuplet-octet, and decuplet-decuplet vertices with pseudoscalar mesons within a general framework of the chiral quark-soliton model, taking into account the effects of flavor SU(3) symmetry breaking to linear order in the expansion of the strange current quark mass. All relevant dynamical parameters are fixed by using the experimental data on hyperon semileptonic decays and the singlet axial-vector constant of the nucleon. The results of the strong coupling constants for the baryon octet and the pseudoscalar meson octet are compared with those determined from the Jülich-Bonn potential and the Nijmegen extended soft-core potential for hyperon-nucleon scattering. The results of the strong decay widths of the baryon decuplet are in good agreement with the experimental data. The effects of symmetry breaking are sizable on the coupling constants. We predict also the strong coupling constants for the baryons.

    Comments:
    10 pages
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Experiment (hep-ex); Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
    arXiv:
    1807.09090 [pdf]
    PLB(2018)·20 citations

Affiliations

first authorsco-authorsvia INSPIRE