Role of gauge invariance in radiative weak decays
National Center for Physics, Quaid-e-Azam University - Islamabad
Accepted: 17 July 2002
The role of gauge invariance in calculating radiative weak decays is clarified. It is shown that the gauge invariance, particularly in the context of vector meson dominance, severely restricts the contributions mediated by the usual weak non-leptonic Hamiltonian dominated by u and c quarks with one photon attachment. We also discussed contributions which are not restricted to vector dominance.
PACS: 13.40.Hq – Electromagnetic decays / 12.40.Vv – Vector-meson dominance / 14.40.Nd – Bottom mesons
© EDP Sciences, 2002