Hyperfine splitting and leptonic decay rates in heavy quarkonia

Details Hyperfine splitting and leptonic decay rates in heavy quarkonia Hyperfine splitting and leptonic decay rates in heavy quarkonia

2003-04-23

arxiv.org/abs/hep-ph/0304227v2

Mod.Phys.Lett. A18 (2003) 1597-1600

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, misprint in Table 2 corrected

Scientific paper

10.1142/S0217732303011307

The hyperfine splitting in heavy quarkonia is considered in its relation to
the leptonic decay rates with the account of relativistic and radiative
corrections. The calculated decay rates agree well with the available
experimental data, while the predicted \eta_c(2S) mass is significantly smaller
than the value measured recently by the Belle Collaboration.

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