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Mass spectrum and leptonic decay constants of ground and radially excited states of η_c and η_b in a Bethe–Salpeter equation framework

Hluf Negash

Department of Physics, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia

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and

Shashank Bhatnagar

Department of Physics, Addis Ababa University, P. O. Box 1176, Addis Ababa, Ethiopia

Corresponding author.

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https://doi.org/10.1142/S0218301315500305Cited by:5 (Source: Crossref)

Abstract

In this paper, we study the mass spectrum and decay constants of ground state (1S) and radially excited states (2S and 3S) of heavy equal mass pseudoscalar mesons, η_c and η_b. We have employed the framework of Bethe–Salpeter equation (BSE) under Covariant Instantaneous Ansatz (CIA). Our predictions are in reasonable agreement with the data on available states and results of other models.

Keywords:

PACS: 12.39.-x, 11.10.St, 12.40.Yx, 13.20.-v, 21.30.Fe

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