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T: Fachverband Teilchenphysik
T 119: Flavour (Theorie/Experiment) 3
T 119.2: Vortrag
Donnerstag, 27. März 2014, 17:00–17:15, GFH 01-701
Electromagnetic Contributions to Semileptonic B → π l ν Transitions — Tobias Huber, Alexander Khodjamirian, and •Rebecca Klein — Universität Siegen/Germany
A precise determination of the quark mixing matrix element Vub is an ongoing process. One possibility is to extract this parameter from data on exclusive B → π l ν decays. With increasing precision of the determination of Vub electromagnetic corrections can possibly become important. In this talk we will present O(αe) corrections to the hard scattering kernel in the Light Cone OPE and discuss photon exchanges and real emissions.