Calculation of The Bc Leptonic Decay Constant Using the Shifted N-Expansion Method

Journal Title, Volume, Page:

International Journal of Modern Physics A Vol. 21, No. 32, 6699- 6714

Year of Publication:

2006

Link:

http://www.worldscientific.com/doi/abs/10.1142/S0217751X06034100

Authors:

Sameer M. Ikhdair

Department of Physics, Near East University, Nicosia, North Cyprus, Mersin-10, Turkey

Current Affiliation:

Department of Physics, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Ramazan Sever

Department of Physics, Middle East Technical University, 06531 Ankara, Turkey

Preferred Abstract (Original):

We give a review and present a comprehensive calculation for the leptonic constant f_{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 system. Our results are compared with other models to gauge the reliability of the predictions and point out differences.

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Calculation of The Bc Leptonic Decay Constant Using the Shifted N-Expansion Method