arXiv:hep-ph/0002038·v2·High Energy Physics — Phenomenology
Measuring B -> rho pi decays and the unitarity angle alpha
A. Deandrea🇨🇭 · R. Gatto🇨🇭 · M. Ladisa🇨🇭 · G. Nardulli🇨🇭 · P. Santorelli🇮🇹
Abstract
The decay mode B -> rho pi is currently studied as a channel allowing, in principle, to measure without ambiguities the angle alpha of the unitarity triangle. It is also investigated by the CLEO Collaboration where a branching ratio larger than expected for the decay mode B+/- -> rho0 pi+/- has been found. We investigate the role that the B* and B(0+) resonances play in these analyses.
Comments: 8 pages, 2 figures, 3 tables, LaTeX (uses epsf,revtex) minor typos corrected, reference added