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相关论文: An accurate nucleon-nucleon potential with charge-…

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Motivated by the last experimental and theoretical advances in the analysis of possible baryonium resonances, the $X(1835)$ and their partners, we perform a constituent-quark-model based coupled-channels calculation of the proton-antiproton…

高能物理 - 唯象学 · 物理学 2024-10-17 P. G. Ortega , D. R. Entem , F. Fernandez , J. Segovia

Experimental data of charged current inclusive neutrino cross sections on argon as a function of different variables have recently appeared. We have compared them to our theoretical approach. Overall we find an agreement in spite of a…

高能物理 - 唯象学 · 物理学 2022-08-02 M. Martini , M. Ericson , G. Chanfray

A low momentum nucleon-nucleon (NN) potential $V_{low-k}$ is derived from meson exhange potentials by integrating out the model dependent high momentum modes of $V_{NN}$. The smooth and approximately unique $V_{low-k}$ is used as input for…

核理论 · 物理学 2009-11-07 Scott Bogner , T. T. S. Kuo , L. Corragio , A. Covello , N. Itaco

A new Nijmegen soft-core OBE potential model is presented for the low-energy YN interactions. Besides the results for the fit to the scattering data, which largely defines the model, we also present some applications to hypernuclear systems…

核理论 · 物理学 2008-11-26 Th. A. Rijken , V. G. J. Stoks , Y. Yamamoto

Removal of the quenched approximation in the mechanism which produced an analytic estimate of quark-binding potentials, along with a reasonable conjecture of the color structure of the nucleon formed by such a binding potential, is shown to…

高能物理 - 唯象学 · 物理学 2015-01-20 H. M. Fried , Y. Gabellini , T. Grandou , Y. -M. Sheu

A complete version of the Moscow NN potential model is presented. The excellent description for all essential partial waves has been found in the energy range 0 -- 350 MeV. The one-channel version of the model includes the orthogonality…

核理论 · 物理学 2007-05-23 Vladimir I. Kukulin , V. N. Pomerantsev , Amand Faessler

A partial-wave analysis of all antiproton-proton scattering data below 925 MeV/c antiproton laboratory momentum is presented. The method used is adapted from the Nijmegen phase-shift analyses of pp and np scattering data. The Nijmegen 1993…

核理论 · 物理学 2009-09-25 R. Timmermans , Th. A. Rijken , J. J. de Swart

We calculate the energy per particle of symmetric nuclear matter and pure neutron matter using the microscopic many-body Brueckner-Hartree-Fock (BHF) approach and employing the Argonne V18 (AV18) nucleon-nucleon (NN) potential supplemented…

核理论 · 物理学 2015-02-05 Domenico Logoteta , Isaac Vidaña , Ignazio Bombaci , Alejandro Kievsky

The influence of the energy dependence of the free NN t-matrix on the optical potential of nucleon-nucleus elastic scattering is investigated within the context of a full-folding model based on the impulse approximation. The treatment of…

核理论 · 物理学 2008-11-26 Ch. Elster , S. P. Weppner

The real part of the optical potential for the nucleon-nucleus scattering at lower energies (E_i<100MeV) has been calculated including nucleonic and mesonic form factors by a double folding approach. Realistic density- and energy-dependent…

核理论 · 物理学 2007-05-23 M. Avrigeanu , A. N. Antonov , H. Lenske , I. Stetcu

We present a model for weak CC induced nuclear reactions at energies of interest for current and future neutrino oscillation experiments. This model is a natural extension of the work of Refs.[1,2], where the QE contribution to the…

高能物理 - 唯象学 · 物理学 2013-05-29 J. Nieves , I. Ruiz Simo , M. J. Vicente Vacas

We report Green's function Monte Carlo calculations of isospin-mixing (IM) matrix elements for the 2+, 1+, and 3+ T=0,1 pairs of states at 16--19 MeV excitation in 8Be. The realistic Argonne v18 (AV18) two-nucleon and Illinois-7…

核理论 · 物理学 2015-06-17 R. B. Wiringa , S. Pastore , Steven C. Pieper , Gerald A. Miller

We apply improved nucleon-nucleon potentials up to fifth order in chiral effective field theory, along with a new analysis of the theoretical truncation errors, to study nucleon-deuteron (Nd) scattering and selected low-energy observables…

We develop a method to parameterize elastic-scattering phase-shifts for charged nuclei, based on Pad\'e expansions of a simplified effective-range function. The method is potential independent and the input is reduced to experimental phase…

核理论 · 物理学 2017-09-06 Oscar Leonardo Ramírez Suárez , Jean-Marc Sparenberg

Recently developed chiral nucleon-nucleon (NN) forces at next-to-leading order (NLO) that describe NN phase shifts up to about 100 MeV fairly well have been applied to 3N and 4N systems. Faddeev-Yakubovsky equations have been solved…

核理论 · 物理学 2009-11-06 E. Epelbaum , H. Kamada , A. Nogga , H. Witala , W. Glöckle , Ulf-G. Meißner

A new parametrization PC-PK1 for the nuclear covariant energy density functional with nonlinear point-coupling interaction is proposed by fitting to observables for 60 selected spherical nuclei, including the binding energies, charge radii…

核理论 · 物理学 2010-12-23 P. W. Zhao , Z. P. Li , J. M. Yao , J. Meng

There is a tremendous potential for neutrinos to yield valuable new information about strongly interacting systems. Here we provide a taste of this potential, beginning with the existence of a rigorous sum rule for the proton and neutron…

高能物理 - 实验 · 物理学 2010-02-17 A. W. Thomas

We reformulate the analysis of nuclear parity-violation (PV) within the framework of effective field theory (EFT). To order Q, the PV nucleon-nucleon (NN) interaction depends on five a priori unknown constants that parameterize the…

核理论 · 物理学 2014-11-18 Shi-Lin Zhu , C. M. Maekawa , B. R. Holstein , M. J. Ramsey-Musolf , U van Kolck

Charge-independence breaking due to the pion-mass difference in the (chiral) two-pion-exchange nucleon-nucleon force is investigated. A general argument based on symmetries is presented that relates the charge-symmetric part of that force…

核理论 · 物理学 2014-11-18 J. L. Friar , U. van Kolck

Bulk and single-particle properties of hot hyperonic matter are studied within the Brueckner-Hartree-Fock approximation extended to finite temperature. The bare interaction in the nucleon sector is the Argonne V18 potential supplemented…

核理论 · 物理学 2009-11-11 Arnau Rios , Artur Polls , Angels Ramos , Isaac Vidaña