On Radiative Weak Annihilation Decays
高能物理 - 唯象学
2007-05-23 v1
摘要
We discuss a little-studied class of weak decay modes sensitive to only one quark topology at leading order in G_F: M --> m gamma, where M,m are mesons with completely distinct flavor quantum numbers. Specifically, they proceed via the annihilation of the valence quarks through a W and the emission of a single hard photon, and thus provide a clear separation between CKM and strong interaction physics. We survey relevant calculations performed to date, discuss experimental discovery potential, and indicate interesting future directions.
关键词
引用
@article{arxiv.hep-ph/0012316,
title = {On Radiative Weak Annihilation Decays},
author = {Richard F. Lebed},
journal= {arXiv preprint arXiv:hep-ph/0012316},
year = {2007}
}
备注
10 pages LaTeX, includes macros file and 9 .eps figures. Invited talk at RADCOR 2000 (5th Int. Symp. on Radiative Corrections), Carmel, CA, Sept. 2000