Measurement of B0 to pi- l+ nu in untagged events and determination of |Vub| at Belle

Details Measurement of B0 to pi- l+ nu in untagged events and determination of |Vub| at Belle Measurement of B0 to pi- l+ nu in untagged events and determination of |Vub| at Belle

2011-01-14

arxiv.org/abs/1101.2730v1

Physics

High Energy Physics

High Energy Physics - Experiment

Proceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 Septembe

Scientific paper

A study of the charmless semileptonic decay B0 to pi- l+ nu using a large
sample of untagged Upsilon(4S) to B Bbar events collected with the Belle
detector at the KEKB asymmetric e+ e- collider is presented. The branching
fraction of the decay is obtained and from this the Cabibbo-Kobayashi-Maskawa
matrix element |Vub| is determined using two different approaches.

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