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Nuclear Theory·nucl-th

Friday·October 7, 2016

6 papers—3 primary·3 cross-listed

All6Primary3Cross-lists3
  1. 01

    [Submitted on 6 Oct 2016]

    Isospin decomposition of the transitions as input for constructing models of neutrino-induced reactions in the nucleon resonance region

    H. Kamano🇯🇵 · S. X. Nakamura🇯🇵 · T.-S. H. Lee🇺🇸 · T. Sato🇯🇵

    We present our recent efforts to determine the matrix elements associated with the transition between the nucleon and a nucleon resonance induced by the vector current, which are necessary ingredients for models of neutrino-induced reactions in the resonance region. This is accomplished by making the comprehensive analysis of the data for various meson photo- and electro-production reactions off the nucleon within a sophisticated coupled-channels framework, which is known as the ANL-Osaka dynamical coupled-channels model. We also give a brief introduction to our project for constructing a unified neutrino reaction model conducted at the J-PARC Branch of the KEK Theory Center.

    Comments:
    6 pages, 3 figures. Contribution to the proceedings of 18th International Workshop on Neutrino Factories and Future Neutrino Facilities Search (NuFact16), Quy Nhon, Vietnam, August 21-27, 2016
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Experiment (hep-ex); High Energy Physics — Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
    arXiv:
    1610.01710 [pdf]
    1 citation
  2. 02

    [Submitted on 6 Oct 2016]

    Modern Dynamical Coupled-Channels Calculations for Extracting and Understanding the Nucleon Spectrum

    Hiroyuki Kamano🇯🇵

    We give an overview of recent progress in the spectroscopic study of nucleon resonances within the dynamical coupled-channels analysis of meson-production reactions. The important role of multichannel reaction dynamics in understanding various properties of nucleon resonances is emphasized.

    Comments:
    11 pages, 8 figures. Plenary talk at The 14th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2016), Kyoto, Japan, July 25-30, 2016
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
    arXiv:
    1610.01821 [pdf]
    JPS Conf.Proc.(2017)·2 citations
  3. 03

    [Submitted on 6 Oct 2016]

    Correlations between critical parameters and bulk properties of nuclear matter

    O. Lourenço · B. M. Santos · M. Dutra · A. Delfino

    The present work starts by providing a clear identification of correlations between critical parameters (, , ) and bulk quantities at zero temperature of relativistic mean-field models (RMF) presenting third and fourth order self-interactions in the scalar field . Motivated by the nonrelativistic version of this RMF model, we show that effective nucleon mass () and incompressibility (), at the saturation density, are correlated with , , and , as well as, binding energy and saturation density itself. We verify agreement of results with previous theoretical ones regarding different hadronic models. Concerning recent experimental data of the symmetric nuclear matter critical parameters, our study allows a prediction of , and compatible with such values, by combining them, through the correlations found, with previous constraints related to and . An improved RMF parametrization, that better agrees with experimental values for , is also indicated.

    Comments:
    12 pages, 11 figures. Accepted for publication in Phys. Rev. C
    Subjects:
    Nuclear Theory (nucl-th); Solar and Stellar Astrophysics (astro-ph.SR)
    arXiv:
    1610.01974 [pdf]
    PRC(2016)·20 citations

Affiliations

first authorsco-authorsvia INSPIRE