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Mainz 2014 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 119: Flavour (Theorie/Experiment) 3

T 119.1: Vortrag

Donnerstag, 27. März 2014, 16:45–17:00, GFH 01-701

Disentangling the Decay Observables in B → π+πνSven Faller, Thorsten Feldmann, Alexander Khodjamirian, Thomas Mannel, and •Danny van Dyk — Universität Siegen, Siegen, Deutschland

We report on recent studies of the semileptonic decay B → π+πν, introducing B→ ππ form factors in the helicity basis. Our results include the decomposition into partial waves of the dipion, angular observables that provide null tests of the Standard Modell, and form factor relations in the heavy-quark and the large-energy limits. We also report on progress in the calculation of B→π+π form factors in two regions of the phase space, using Heavy Hadron Chiral Perturbation Theory as well as QCD Factorization.

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