2007/07/03 by S. Rai Choudhury, A. S. Cornell, Naveen Gaur
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-008-0752-x
published as Eur.Phys.J.C58:251-259,2008 · 13 pages, 4 figures
arxiv created 2007/07/03 · openalex publication_date 2008/10/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Flavour Changing Neutral Current decays of the B-meson are a very useful tool for studying possible physics scenarios beyond the Standard Model (SM), where of the many FCNC modes radiative, purely leptonic and semi-leptonic decays of the B-meson are relatively clean tests. Within this context the BELLE collaboration has searched for the B → K1(1270) γ process and provided an upper bound on this decay. In this work we have used this upper bound in studying the angular coorelations for the related semi-leptonic decay mode B → K1(1270) (→ ρK) ℓ+ ℓ-, where we have used the form factors that have already been estimated for the B → K1(1270) γ mode. Note that the additional form factors that are required were calculated using the Large Energy Effective Theory (LEET).