Isospin violation of quark distributions in the Delta (1232)

M Ejaz Ayyaz, P Hoodbhoy
1992 Journal of Physics G: Nuclear and Particle Physics  
Abstnd. Electromagnetism and finite quark mass differences lead to isospin violation of quark distributions in the A(1232) resonance. We estimate this in a simple valence quark model, and suggest measurement through semi-inclusive deep inelastic lepton scattering from selected nuclear targets. Isospin-violating nucleon quark distributions are of considerable interest, since they p'V"l"G n puLGL'LL'a,LJ JLglLlLrc'alrr 1 G 3 L "I "U, ul,uGL>L'lrr"rrLg "L UL" a"" qun,n III"UCI>.
doi:10.1088/0954-3899/18/9/002 fatcat:l2upx4eo2jgspbfuxnbcdk63ee