2012/12/05 by Bhubanjyoti Bhattacharya, Bhattacharya, Bhubanjyoti, Maxime Imbeault +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1212.1167
Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity Triangle, University of Cincinnati, USA, 28 September - 2 October 2012
arxiv created 2012/12/05 · arxiv updated 2012/12/07
The conventional use of two-body B decays to extract γ, although theoretically clean, is currently statistics-limited. On the other hand, a bulk of data on three-body B decays is available from B factories. Applying the flavor-SU(3)-symmetric approach proposed in Ref. \citeReyLeLorier:2011ww to \babar data, we find the highly promising result γ= (81+4-5 (\rm avg.) ± 5 (\rm std. dev.))^∘. This establishes the use of three-body B decays as a viable alternative for the extraction of weak phases. In this preliminary analysis we have neglected several sources of uncertainties such as the effect of flavor-SU(3) breaking due to meson masses, and error correlations between input experimental parameters. A better understanding of these will improve the viability of this method.