2011/01/17 by Florian U. Bernlochner, Bernlochner, Florian U., Heiko Lacker +9
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.1101.3310
7 pages, 3 figures, Proceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 2010
arxiv created 2011/01/17 · arxiv updated 2011/01/19
The goal of the SIMBA collaboration is to provide a global fit to the available data in inclusive B -> Xs gamma and B -> Xu l nu decays. By performing a global fit one is able to simultaneously determine the relevant normalizations, i.e. the total B -> Xs gamma rate and the CKM-matrix element |Vub|, together with the required input parameters, most importantly the b-quark mass and the b-quark distribution function in the B-meson, called the shape function. This strategy is analogous to the determination of |Vcb| from global fits to inclusive B -> Xc l nu decays. In this talk, we present preliminary results for the shape function and |C7incl Vtb Vts^*|, which parametrizes the total B -> Xs gamma rate, from a global fit to the available B -> Xs gamma measurements from BABAR and Belle.