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B_c SPECTROSCOPY IN THE SHIFTED l-EXPANSION TECHNIQUE

SAMEER M. IKHDAIR

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

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and

RAMAZAN SEVER

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

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https://doi.org/10.1142/S0218301308010076Cited by:12 (Source: Crossref)

Abstract

In the framework of static and QCD-motivated model potentials for heavy quarkonium, we present a further comprehensive calculation of the mass spectrum of system and its ground state spin-dependent splittings in the context of the shifted l-expansion technique. We also predict the leptonic constant f_{B_c} of the lightest pseudoscalar B_c, and of the vector states taking into account the one-loop and two-loop QCD corrections. Furthermore, we use the scaling relation to predict the leptonic constant of the nS-states of the system. Our predicted results are generally in high agreement with some earlier numerical methods. The parameters of each potential are adjusted to obtain best agreement with the experimental spin-averaged data (SAD).

Keywords:

PACS: 03.65.Ge, 12.39.Jh, 13.30.Gd

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