Results 31 to 40 of about 259,673 (312)

Quark Models of the Nucleon–Nucleon Interaction

open access: yesFrontiers in Physics, 2020
The present paper aims to provide a review of the relevance of quark degrees of freedom in the description of the nucleon-nucleon and, in general, of the baryon-baryon interaction.
Francisco Fernández   +4 more
doaj   +1 more source

Four-nucleon force in chiral effective field theory [PDF]

open access: yes, 2005
We derive the leading contribution to the four-nucleon force within the framework of chiral effective field theory. It is governed by the exchange of pions and the lowest-order nucleon-nucleon contact interaction and includes effects due to the nonlinear
Beane   +29 more
core   +2 more sources

The nucleon-nucleon interaction [PDF]

open access: yesBrazilian Journal of Physics, 2004
Recent developements in our understanding of the fundamental nucleon-nucleon interaction are reviewed. Among the topics considered are (1) the so-called high-precision nucleon-nucleon potentials that emerged in the mid 1990s, (2) progress in the microscopic description of the intermediate-range part of the nucleon-nucleon interaction in terms of ...
openaire   +4 more sources

On Lattice Calculation of Electric Dipole Moments and Form Factors of the Nucleon [PDF]

open access: yes, 2017
We analyze commonly used expressions for computing the nucleon electric dipole form factors (EDFF) $F_3$ and moments (EDM) on a lattice and find that they lead to spurious contributions from the Pauli form factor $F_2$ due to inadequate definition of ...
M. Abramczyk   +5 more
semanticscholar   +1 more source

Antinucleon-nucleon interaction in chiral effective field theory [PDF]

open access: yes, 2013
Results of an exploratory study of the antinucleon-nucleon interaction within chiral effective field theory are reported. The antinucleon-nucleon potential is derived up to next-to-next-to-leading order, based on a modified Weinberg power counting, in ...
Haidenbauer, Johann   +2 more
core   +3 more sources

The structure of the nucleon: Elastic electromagnetic form factors [PDF]

open access: yesEuropean Physical Journal A, 2015
Precise proton and neutron form factor measurements at Jefferson Lab, using spin observables, have recently made a significant contribution to the unraveling of the internal structure of the nucleon. Accurate experimental measurements of the nucleon form
V. Punjabi   +5 more
semanticscholar   +1 more source

In-medium nucleon-nucleon elastic cross sections determined from nucleon-induced reaction cross sections data [PDF]

open access: yesChinese Physics C Vol. 43, No. 4 (2019) 044103, 2015
Within the framework of the improved quantum molecular dynamics model, the medium modifications on the free nucleon-nucleon elastic cross sections are investigated. By using various in-medium nucleon-nucleon elastic cross sections in the model, the nucleon-induced reactions on various targets are simulated, and the excitation functions of reaction ...
arxiv   +1 more source

Pion-nucleon scattering in covariant baryon chiral perturbation theory with explicit Delta resonances [PDF]

open access: yes, 2016
A bstractWe present the results of a third order calculation of the pion-nucleon scattering amplitude in a chiral effective field theory with pions, nucleons and delta resonances as explicit degrees of freedom.
D. Yao   +8 more
semanticscholar   +1 more source

Testing Non-local Nucleon-Nucleon Interactions in the Four-Nucleon Systems [PDF]

open access: yesPhys.Rev. C70 (2004) 044002, 2004
The Faddeev-Yakubovski equations are solved in configuration space for the $% \alpha$-particle and n-$^3$H continuum states. We test the ability of nonlocal nucleon-nucleon interaction models to describe 3N and 4N systems.
arxiv   +1 more source

NEUTRINO-DRIVEN EXPLOSION OF A 20 SOLAR-MASS STAR IN THREE DIMENSIONS ENABLED BY STRANGE-QUARK CONTRIBUTIONS TO NEUTRINO–NUCLEON SCATTERING [PDF]

open access: yes, 2015
Interactions with neutrons and protons play a crucial role for the neutrino opacity of matter in the supernova core. Their current implementation in many simulation codes, however, is rather schematic and ignores not only modifications for the correlated
T. Melson   +5 more
semanticscholar   +1 more source

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