Abstract
Applying the Bethe-Salpeter (BS) approach, we compute the leptonic decay \(V(Q\overline {Q})\rightarrow \gamma \rightarrow l^{+}l^{-}\) of S - wave vector quarkonia state, (where \(V(Q\overline {Q})\) is \(c\overline {c}\) or \(b\overline {b}\) and γ is photon). The calculated results are found to be in a reasonable agreement with experimental data and other theoretical approach.
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Acknowledgements
This work was carried out at Samara University (SU), Ethiopia. I thank SU for the facilities provided during this work.
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Negash, H. Applying the BS Approach for Vector Quarkonia Decays Into Pair of Leptons Via Virtual Photon. Int J Theor Phys 60, 4129–4134 (2021). https://doi.org/10.1007/s10773-021-04963-1
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DOI: https://doi.org/10.1007/s10773-021-04963-1