The Exclusive Decay B→ρe ν Beyond Model Calculations

1996/05/06 by Patricia Ball, Ball, Patricia
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9605233

6 pages + titlepage, latex2e, requires a4wide.sty and epsf.sty, 3 postscript figures included, Talk given at XXXIth Rencontres de Moriond, Electroweak Session, Les Arcs 1800 (France), March 96

arxiv created 1996/05/06 · arxiv updated 2009/11/30

Abstract

Due to its comparatively theoretical ``simplicity'', the decay channel B→ρe ν 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.

Related

• Measurement of the form factors of the decay B⁰ -> D^*- l⁺ nu_l and determination of the CKM matrix element |V_cb|
• Semi-leptonic form factors for B_s \→ K \ℓ \ν and B_s \→ D_s\n \ℓ \ν
• Inclusive semileptonic B decays and |Vcb|
• New determination of |V_ub/V_cb| from B_s⁰→ \lbrace K^-, D_s^- \rbrace μ⁺ν
• F(1) for B -> D^*lνfrom Lattice QCD