Analysis of the rare semileptonicBc→P(D,Ds)l+l−/νν¯decays within QCD sum rules

2008/06/30 by K. Azizi, R. Khosravi
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.78.036005

published as Phys.Rev.D78:036005,2008 · 32 Pages, 8 Figures and 6 Tables

arxiv created 2008/07/14 · openalex publication_date 2008/08/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

Abstract

Considering the gluon condensate corrections, the form factors relevant to the semileptonic rare B_c\ensuremath→D, D_s(J^P=0^\ensuremath-)l⁺l^\ensuremath- with l=\ensuremathτ, \ensuremathμ, e and B_c\ensuremath→D, D_s(J^P=0^\ensuremath-)\ensuremathν\ensuremathν transitions are calculated in the framework of the three point QCD sum rules. The heavy quark effective theory limit of the form factors is computed. The branching fraction of these decays is also evaluated and compared with the predictions of the relativistic constituent quark model. Analyzing such transitions could give useful information about the strong interactions inside the pseudoscalar D_s meson and its structure.

Citations

• Light quark dependence of the Isgur-Wise function from QCD sum rules
• Analysis of the rareBc→Ds,d*l+l−decays in QCD
• Review of Particle Physics