Semileptonic B Decays at BABAR

Details Semileptonic B Decays at BABAR Semileptonic B Decays at BABAR

2004-02-10

arxiv.org/abs/hep-ex/0402018v1

Mod.Phys.Lett.A19:559-576,2004

Physics

High Energy Physics

High Energy Physics - Experiment

Invited Brief Review, to appear in Modern Physics Letters A

Scientific paper

10.1142/S0217732304014082

We present results on semileptonic B decays obtained with the BABAR detector. The large data set accumulated at the PEP-II asymmetric-energy B-Factory allows a new measurement technique, where the hadronic decay of one B meson is fully reconstructed and the semileptonic decay of the recoiling B meson is studied. Traditional analysis techniques of inclusive and exclusive B decays complement this approach with very high statistics data samples. These measurements play an important role in the tests of the description of CP violation in the Standard Model: The determinations of the Cabibbo-Kobayashi-Maskawa matrix elements |Vcb| and |Vub| provide constraints on the unitarity of the CKM triangle. Furthermore, the experimental measurement of parameters of Heavy Quark Effective Theory test the consistency of the theoretical description of semileptonic B decays.

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