B to tensor meson form factors in the perturbative QCD approach
- Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Bari 70126 (Italy)
We calculate the B{sub u,d,s}{yields}T form factors within the framework of the perturbative QCD approach, where T denotes a light tensor meson with J{sup P}=2{sup +}. Because of the similarities between the wave functions of a vector and a tensor meson, the factorization formulas of B{yields}T form factors can be obtained from the B{yields}V transition through a replacement rule. As a consequence, we find that these two sets of form factors have the same signs and correlated q{sup 2}-dependence behaviors. At q{sup 2}=0 point, the B{yields}T form factors are smaller than the B{yields}V ones, in accordance with the experimental data of radiative B decays. In addition, we use our results for the form factors to explore semilteptonic B{yields}Tl{nu}{sub l} decays and the branching fractions can reach the order 10{sup -4}.
- OSTI ID:
- 21503867
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevD.83.014008; (c) 2011 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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