The Exclusive Decay $B\toρe ν$ Beyond Model Calculations

Details The Exclusive Decay $B\toρe ν$ Beyond Model Calculations The Exclusive Decay $B\toρe ν$ Beyond Model Calculations

1996-05-06

arxiv.org/abs/hep-ph/9605233v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages + titlepage, latex2e, requires a4wide.sty and epsf.sty, 3 postscript figures included, Talk given at XXXIth Rencontres

Scientific paper

Due to its comparatively theoretical ``simplicity'', the decay channel $B\to\rho e \nu$ offers one of the best possibilities to determine the CKM matrix element $|V_{ub}|$ accurately. I present a new calculation of the relevant hadronic form factors from light-cone sum rules. I also review the results from lattice calculations and find that they agree with the results from light-cone sum rules where comparison is possible.\\ This paper relies on work done in collaboration with V.M.\ Braun.

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