Potential Models for Radiative Rare B Decays

Details Potential Models for Radiative Rare B Decays Potential Models for Radiative Rare B Decays

2001-01-23

arxiv.org/abs/hep-ph/0101256v1

Phys.Rev. D65 (2002) 074018

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTeX, 6 pages, 1 eps figure

Scientific paper

10.1103/PhysRevD.65.074018

We compute the branching ratios for the radiative rare decays of B into K-Meson states and compare them to the experimentally determined branching ratio for inclusive decay b -> s gamma using non relativistic quark model, and form factor definitions consistent with HQET covariant trace formalism. Such calculations necessarily involve a potential model. In order to test the sensitivity of calculations to potential models we have used three different potentials, namely linear potential, screening confining potential and heavy quark potential as it stands in QCD.We find the branching ratios relative to the inclusive b ->s gamma decay to be (16.07\pm 5.2)% for B -> K^* (892)gamma and (7.25\pm 3.2)% for B -> K_2^* (1430)gamma for linear potential. In the case of the screening confining potential these values are (19.75\pm 5.3)% and (4.74\pm 1.2)% while those for the heavy quark potential are (11.18\pm 4.6)% and (5.09\pm 2.7)% respectively. All these values are consistent with the corresponding present CLEO experimental values: (16.25\pm 1.21)% and (5.93\pm 0.46)%.

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