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Relativistic effects in decay of S-wave quarkoniums

  • Elementary-Particle Physics And Field Theory
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Russian Physics Journal Aims and scope

Abstract

The width of S-wave quarkonium decays (ηc, ηb →; γγ and J/θ, Y → e+e−) are calculated using the quasipotential approach. The nontrivial dependence of decay amplitude on relative quark momentum is considered. It is shown that relativistic corrections reach values of 30–50% in the processes studied.

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Authors
  1. A. P. Martynenko
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  2. V. A. Saleev
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Additional information

Samara State University. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 46–53, May, 1995.

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Martynenko, A.P., Saleev, V.A. Relativistic effects in decay of S-wave quarkoniums. Russ Phys J 38, 475–482 (1995). https://doi.org/10.1007/BF00559302

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  • DOI: https://doi.org/10.1007/BF00559302

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