22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Measurement of the decay B^0 -> pi^- l^+ nu in untagged events and determination of |V_ub| at Belle

24 Jul 2010, 09:30
Salle 242A ()

Salle 242A

Parallel Session Talk 06 - CP violation, CKM and Rare Decays 06 - CP violation, CKM and Rare Decays


Hyuncheong Ha (Korea University)


We present a measurement of the charmless semileptonic decay B^0 --> pi^- l^+ nu using a large sample of untagged Upsilon(4S)--> B anti-B events collected with the Belle detector at the KEKB e^+ e^- asymmetric collider. From the results, we determine the branching fraction of the decay and extract the Cabibbo-Kobayashi-Maskawa matrix element |V_{ub}| using various approaches.

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