2018/11/26 by Bhubanjyoti Bhattacharya, David London, Bhattacharya, Bhubanjyoti +1
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.1811.10671
3 pages, Proceedings of the the 10th International Workshop on the CKM Unitarity Triangle (CKM2018), 17 - 21 September, 2018, Heidelberg, Germany
arxiv created 2018/11/26 · arxiv updated 2018/11/28
To date, the weak-phase γ has been measured using two-body B-meson decays such as B→ D K and B→ Dπ, whose amplitudes contain only tree-level diagrams. But γ can also be extracted from three-body charmless hadronic B decays. Since the amplitudes for such decays contain both tree- and loop-level diagrams, γ obtained in this way is sensitive to new physics that can enter into these loops. The comparison of the values of γ extracted using tree-level and loop-level methods is therefore an excellent test for new physics. In this talk, we will show how U-spin and flavor-SU(3) symmetries can be used to develop methods for extracting γ from B→ Kππ and B→ KK K decays. We describe a successful implementation of the flavor-SU(3) symmetry method applied to BaBar data.