Book Synopsis Strange Mesonic Transition Form Factor by :
Download or read book Strange Mesonic Transition Form Factor written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The strange-quark vector current [rho]-to-[pi] meson transition form factor is computed at one-loop order using strange meson intermediate states. A comparison is made with a [phi]-meson dominance model estimate. They find that one-loop contributions are comparable in magnitude to those predicted by [phi]-meson dominance. It is possible that the one-loop contribution can make the matrix element as large as those of the electromagnetic current mediating vector meson radiative decays. However, due to the quadratic dependence of the one-loop results on the hadronic form factor cut-off mass, a large uncertainty in the estimate of the loops is unavoidable. These results indicate that non-nucleonic strange quarks could contribute appreciably in moderate-{vert_bar}Q2{vert_bar} parity-violating electron-nucleus scattering measurements aimed at probing the strange-quark content of the nucleon.
