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Research PapersNo Access

CALCULATION OF THE B_c LEPTONIC DECAY CONSTANT USING THE SHIFTED N-EXPANSION METHOD

SAMEER M. IKHDAIR

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

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and

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

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https://doi.org/10.1142/S0217751X06034100Cited by:14 (Source: Crossref)

Abstract

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.

Keywords:

PACS: 12.39.Pn, 12.39.Jh, 13.25.Jx, 14.40.-n

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Vol. 21, No. 32

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Received 20 December 2005

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