Second-class currents and very light quarks

1 November 1976

journal article
research article
Published by American Physical Society (APS) in Physical Review D

Vol. 14 (9) , 2343-2348
https://doi.org/10.1103/physrevd.14.2343

Abstract

We consider induced second-class nucleon currents in a light-quark model generated by unequal

u

and

d

quark masses. The effect produced by gluon vertex corrections is strikingly large without confinement effects. Restricting the quarks to the limited spatial region of a physical nucleon changes the energy scale from the quark mass to the quark-bound-state energy and thereby reduces the second-class form factors well below their first-class counterparts.

Keywords

This publication has 18 references indexed in Scilit:

Second-class currents
Physical Review D, 1976
Experimental Study of Weak Magnetism and Second-Class Interaction Effects in the $β$ Decay of Polarized ${}^{19}{Ne}$
Physical Review Letters, 1975
$M 1$ Decay Rates and Second-Class Currents in Mass 8
Physical Review Letters, 1975
Induced weak currents and $β^{\pm} - α$ angular correlations in $A = 8$
Physical Review C, 1975
Implications of scaling for the proton-neutron mass difference
Nuclear Physics B, 1975
$β$ -Decay Asymmetries in Polarized ${}^{12}B$ and ${}^{12}N$ and the $G$ -Parity-Nonconserving Weak Interaction
Physical Review Letters, 1975
Weak Magnetism and Second-Class-Current Interactions in $A = 8$
Physical Review Letters, 1974
Second-Class Currents: Some Model-Independent Considerations and Conclusions
Physical Review D, 1972
$β$ Decay of ${}^{8}{Li}$ and ${}^{8}B$ : The Second-Class Current Problem
Physical Review Letters, 1971
Experimental Test of the Conserved Vector Current Theory on the Beta Spectra of $B^{12}$ and $N^{12}$
Physical Review Letters, 1963