Semileptonic B{sub q}{yields}D{sub q}*l{nu} (q=s,d,u) decays in QCD sum rules
- Physics Department, Middle East Technical University, 06531 Ankara (Turkey)
The form factors relevant to B{sub q}{yields}D{sub q}*(J{sup P}=1{sup -})l{nu} (q=s, d, u) decays are calculated in the framework of the three point QCD sum rules approach. The heavy quark effective theory prediction of the form factors as well as 1/m{sub b} corrections to those form factors are obtained. A comparison of the results for the ratio of form factors at zero recoil limit and other values of q{sup 2} with the predictions of the subleading Isgur-Wise form factor application for B{yields}D*l{nu} is presented. The total decay width and branching ratio for these decays are also evaluated using the q{sup 2} dependencies of these form factors. The results are in good agreement with the constituent quark meson model and existing experimental data. The q=s case can also be detected at LHC in the near future.
- OSTI ID:
- 21250719
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 78, Issue 5; Other Information: DOI: 10.1103/PhysRevD.78.054011; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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