Hyperfine splitting and leptonic decay rates in heavy quarkonia

Abstract

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 η_c(2S) mass is significantly smaller than the value measured recently by the Belle Collaboration.

4 pages, misprint in Table 2 corrected

References in corpus (1)

• The ${\eta }_c(3654)$ and hyperfine splitting in charmonium

Cited by in corpus (14)

• Radiative Transitions in Charmonium from Lattice QCD
• $Q\bar{Q}$ ($Q\in \{b,c\}$) spectroscopy using Cornell potential
• Properties of $Q\bar{Q}$ $(Q\epsilon b,c)$ mesons in Coulomb plus Power potential
• Dielectron widths of the S-, D-vector bottomonium states
• The Hyperfine Splittings in Bottomonium and the $B_q(q=n,s,c)$ Mesons
• Leptonic widths of high excitations in heavy quarkonia
• Relativistic corrections to the pair double heavy diquark production in e^+e^- annihilation
• Relativistic corrections to the pair $B_c$-meson production in $e^{+}{e}^{-}$ annihilation
• $B_c$ meson spectroscopy motivated by general features of pNRQCD
• Bottomonium spectroscopy motivated by general features of pNRQCD
• Higher ${\eta }_c(nS)$ and ${\eta }_b(nS)$ mesons
• Masses of the η_c(nS) and η_b(nS) mesons
• Relativistic description of the charmonium mass spectrum
• RPA Vector Meson Leptonic Widths