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Nuclear Theory·nucl-th

Wednesday·November 9, 2016

4 papers—2 primary·2 cross-listed

All4Primary2Cross-lists2
  1. 01

    [Submitted on 8 Nov 2016]

    Calculation of three-body nuclear reactions with angular-momentum and parity-dependent optical potentials

    A. Deltuva · D. Jurčiukonis

    Angular-momentum or parity-dependent nonlocal optical potentials for nucleon- scattering able to fit differential cross section data over the whole angular regime are developed and applied to the description of deuteron- scattering in the framework of three-body Faddeev-type equations for transition operators. Differential cross sections and deuteron analyzing powers for elastic scattering and transfer reactions are calculated using a number of local and nonlocal optical potentials and compared with experimental data. Angular-momentum or parity-dependence of the optical potential turns out to be quite irrelevant in the considered three-body reactions while nonlocality is essential for a successful description of the differential cross section data, especially in transfer reactions.

    Comments:
    7 p., 6 fig., published in Phys. Rev. C
    Subjects:
    Nuclear Theory (nucl-th); Nuclear Experiment (nucl-ex)
    arXiv:
    1611.02489 [pdf]
    PRC(2016)·3 citations
  2. 02

    [Submitted on 8 Nov 2016]

    The falsification of Chiral Nuclear Forces

    E. Ruiz Arriola🇪🇸 · J. E. Amaro🇪🇸 · R. Navarro Perez🇺🇸

    Predictive power in theoretical nuclear physics has been a major concern in the study of nuclear structure and reactions. The Effective Field Theory (EFT) based on chiral expansions provides a model independent hierarchy for many body forces at long distances but their predictive power may be undermined by the regularization scheme de- pendence induced by the counterterms and encoding the short distances dynamics which seem to dominate the uncertainties. We analyze several examples including zero energy NN scattering or perturbative counterterm-free peripheral scattering where one would ex- pect these methods to work best and unveil relevant systematic discrepancies when a fair comparison to the Granada-2013 NN-database and partial wave analysis is undertaken.

    Comments:
    6 pages. 1 figure. Talk presented by E.R.A. at "XIIth Conference on Quark Confinement and the Hadron Spectrum", 29th August to 3rd September 2016, Thessaloniki, Greece
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph)
    arXiv:
    1611.02607 [pdf]
    EPJ Web Conf.(2017)·8 citations

Affiliations

first authorsco-authorsvia INSPIRE