Charge dependent effects on nuclear forces

منو

" Charge dependent effects on nuclear forces "
A.-A. T. Abdul-Muhsen

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	1112726
Doc. No	:	TLpq230790269
Main Entry	:	A.-A. T. Abdul-Muhsen
Title & Author	:	Charge dependent effects on nuclear forces\ A.-A. T. Abdul-Muhsen
College	:	King Fahd University of Petroleum and Minerals (Saudi Arabia)
Date	:	1987
student score	:	1987
Degree	:	M.S.
Page No	:	126
Abstract	:	The study of charge independence and charge symmetry on the usd\rm\sp1S\sb{O}usd N-N scattering lengths provides a test of charge dependent effects of nuclear forces. All possible known contributions to the scattering lengths are considered to account for the experimental discrepancies. This problem was broken into two parts, the first considering the direct electromagnetic and the second the indirect electromagnetic effects. The effect on the charge symmetry breaking correction due to the isospin breaking part of the QCD Hamiltonian, determined by the up-down current quark mass difference, on the difference of scattering lengths for charge symmetry is determined. This is done by first calculating the effect of QCD on the pion-nucleon coupling constants via isospin mixing, giving rise to CSB one pion exchange (OPEP) and two pion exchange (TPEP) potentials. The importance of CSB-TPEP is emphasized. The eta-nucleon coupling constant appears to be constrained by experimental values of CS to be very small.
Subject	:	Nuclear physics
	:	Pure sciences