Calculation of the B-c leptonic decay constant using the shifted N-expansion method


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Ikhdair S. M. , Sever R.

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, vol.21, no.32, pp.6699-6714, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Review
  • Volume: 21 Issue: 32
  • Publication Date: 2006
  • Doi Number: 10.1142/s0217751x06034100
  • Title of Journal : INTERNATIONAL JOURNAL OF MODERN PHYSICS A
  • Page Numbers: pp.6699-6714

Abstract

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