Search for Rare B Meson Decays at the BABAR Experiment

7th International Conference on Beauty, Charm, and Hyperons in Hadronic Interactions

Cheaib, R.^1

Department of Physics, University of Mississippi, 108 Lewis Hall, University

MS

38677, United States^1

关键词: Amplitude analysis;    Angular asymmetry;    BABAR experiment;    Branching fractions;    Neutral currents;    The standard model;    Time-dependent analysis;    Virtual particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/770/1/012020/pdf
DOI  :  10.1088/1742-6596/770/1/012020

来源: IOP

【 摘 要 】

b → s transitions are flavour-changing neutral current (FCNC) processes that play an important role in the search for physics beyond the Standard Model (SM). Contributions from virtual particles in the loop are predicted to deviate observables, such as the branching fraction, from their SM expectations. Using data from the BaBar experiment, we present the first search for the rare decay B+→ K+τ+τ-. The BABAR results on the measurement of the angular asymmetries of B → K∗l+l-, where l = e or μ, are also reported. In addition, using a time-dependent analysis of B → Ks0π+π-γ, the mixing induced CP-asymmetry for the radiative FCNC decay, B → Ks0ργ, is measured, along with an amplitude analysis of the mKπand mKππspectrum.