Eur. Phys. J. C (2007) 51: 593-599
https://doi.org/10.1140/epjc/s10052-007-0315-6

Regular Article - Theoretical Physics

Semileptonic B_s→D_sJ(2460)lν decay in QCD

Physics Department, Middle East Technical University, Inonu Bulvari, 06531, Ankara, Turkey

^* e-mail: ozpineci@metu.edu.tr

Received: 28 February 2007
Published online: 22 June 2007

Abstract

Using three point QCD sum rule methods, the form factors relevant to semileptonic B_s→D_sJ(2460)ℓν decay are calculated. The q² dependences of these form factors are evaluated and compared with the heavy quark effective theory predictions. The dependence of the asymmetry parameter α, characterizing the polarization of the D_sJ meson, on q² is studied. The branching ratio of this decay is also estimated, and it is shown that it can easily be detected at LHC.