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, cilt.21, ss.6699-6714, 2006 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 21 Konu: 32
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1142/s0217751x06034100
  • Dergi Adı: INTERNATIONAL JOURNAL OF MODERN PHYSICS A
  • Sayfa Sayıları: ss.6699-6714

Özet

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.