Calculation of the B_{c}leptonic decay constant using the shifted N-expansion method

Details Calculation of the B_{c}leptonic decay constant using the shifted N-expansion method Calculation of the B_{c}leptonic decay constant using the shifted N-expansion method

2007-02-16

arxiv.org/abs/hep-ph/0702166v1

Int.J.Mod.Phys.A21:6699-6714,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages

Scientific paper

10.1142/S0217751X06034100

We give a review and present a comprehensive calculation for the leptonic constant B_{c} of the low-lying pseudoscalar and vector states of B_{c}-meson in the framework of static and QCD-motivated nonrelativistic potential models taking into account the one-loop and two-loop QCD corrections in the short distance coefficient that governs the leptonic constant of $B_{c}$ quarkonium system. Further, we use the scaling relation to predict the leptonic constant of the nS-states of the (b_bar)c system. Our results are compared with other models to gauge the reliability of the predictions and point out differences.

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