arXiv:nucl-th/9911008·v1·Nuclear Theory
QED-QCD Interference Effect on the Charge Dependent N-N Interaction
Pu Xu (Nanjing U. of Sci. and Tech.)🇨🇳 · Jia-Lun Ping (Nanjing Normal U.)🇨🇳 · Fan Wang (Nanjing U.)🇨🇳 · T. Goldman (Los Alamos)🇺🇸
Abstract
The charge symmetry breaking and charge independence breaking N-N ^1S_0 scattering length differences, Delta a_{CSB} and Delta a_{CIB}, are calculated by a resonating group method with a quark cluster model. By adding the QED-QCD interference effect to the quark mass difference and the electromagnetic interaction, the Delta a_{CSB} and Delta a_{CIB} values can be reproduced with model parameters constrained by the hadron isomultiplet mass splitting.
Comments: 8 pages, latex, no figures, submitted to Mod. Phys. Lett. A