5 What is the meaning of the term nucleon number? D A the number of neutrons in the nucleus of an atom B the number of protons in the nucleus of an atom C the total number of protons and electrons in the nucleus of an atom D the total number of protons and neutrons in the nucleus...
The scalar form factor of the nucleon in configuration space as well as its σ-term were evaluated some time ago in the framework of chiral symmetry. We investigate their dependence on the pion mass, aiming at the behavior of the σ-term at the chiral limit. Using the results for light ...
Atmospheric neutrinos that interact with the nucleons via CC interactions in the bottom-most layer of ICAL also produce muons that are detected, starting from the bottom-most RPC layer. Among these events, those which are detected as single tracks (identified as muons) having no visible ...
The A-term is included in the extended linear sigma model in the framework of some aspects of QCD. The field equations have been solved in the mean-field approximation for the hedgehog baryon state. We find that the inclusion of the new term improves the description of the nucleon properties...
Publication » DETERMINATION OF THE KAON--NUCLEON $Sigma$TERM. GD Thompson 被引量: 0发表: 2006年 Chiral SU(3) theory of antikaon-nucleon interactions with improved threshold constraints K-nucleon interactions are investigated in the framework of coupled-channels dynamics based on the next-to-lea...
In addition to the nucleon-nucleon potential V^N−N, the nucleon-nucleon interaction terms also contain the blocking operator B^(1,2)=[1−f^1−f^2] for the first term on the r.h.s. of Eq. (1), and corresponding expressions for the other 5 terms. The mean-field potential V...
Note that the Skyrme force definitions contain the first term (nucleon mass) as a parameter which varies slightly from parametrization to parametrization and may be different for protons and neutrons. The spin–orbit potential is (8d)W→q=b4∇ρ+b4′∇ρq. The above three terms involve the...
nucleon interactions are included, but momentum-dependentNNinteraction terms produce similar effects36. The Daejeon16 interaction is a successor of JISP16. It has been derived from chiral effective field theory up to N3LO terms38, and also uses a few properties of light nuclei for the fine-...
The only thing left is to determine the couplings: for the σ we will use the linear-sigma model [42] and the quark model (as used in Ref. [43]), from which we get that the coupling of the sigma to the nucleon is gσNN=2MN/fπ∼10.2 (for the fπ≃132MeV normalization)....
Nuclear isomers are produced within the same nucleus (N, Z) due to the different arrangement of nucleons. Isomers are crucial in basic nuclear structure studies, nuclear astrophysics as well as energy storage in isomeric states. These isomeric states play an important role in testing the ...