Two-photon and two-gluon decays of p-wave heavy quarkonium using a covariant light-front approach

Abstract

In this paper, a study of two-photon and two-gluon decays in the context of p-wave heavy quarkonia is presented. Within the covariant light-front framework, the annihilation rates of scalar and tensor quarkonium states are derived. In the absence of free parameters in this case, the results for the charmonium decay widths are consistent with the experimental data. However, in comparison to other theoretical calculations, there are large discrepancies in our results regarding bottomonia.

19 pages, 3 figures, 3 tables, some typos are corrected, version to be published in Phys. Rev. D

References in corpus (10)

• Potential model calculations and predictions for heavy quarkonium
• Spin-dependent potentials from lattice QCD
• Dynamic Properties of Charmonium
• Two Photon Decays of Charmonia from Lattice QCD
• Covariant light-front approach for heavy quarkonium: decay constants, P \to γγand V \to P γ
• Annihilation Rate of $2^{++}$ Charmonium and Bottomonium
• Effective Lagrangian for Two-photon and Two-gluon Decays of $P$-wave Heavy Quarkonium ${\chi }_{c0,2}$ and ${\chi }_{b0,2}$ states
• Nonperturbative and spin effects in the central exclusive production of tensor ${\chi }_c(2^{+})$ meson
• Spin-dependent interactions in quarkonia
• Annihilation Rate of Heavy 0^{++} P-wave Quarkonium in Relativistic Salpeter Method

Cited by in corpus (21)

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• Decay rates of charmonia within a quark-antiquark confining potentials
• Measurement of the production cross section ratio sigma(chi[b2](1P)) / sigma(chi[b1](1P)) in pp collisions at sqrt(s) = 8 TeV
• Two-photon widths of the ${\chi }_{c0,2}$ states and helicity analysis for $χ_{c2}\arγγ$}
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• Tensor form factors of $P\to P,S,V$ and $A$ transitions within the standard and the covariant light-front approaches
• Production of ${\eta }_Q$ meson at LHC
• Probing charmonium-like state $X(3915)$ through meson photoproduction
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• Heavy quarkonium 2S states in light-front quark model
• Improved measurements of two-photon widths of the ${\chi }_{cJ}$ states and helicity analysis for ${\chi }_{c2}\to \gamma \gamma$
• Study of $B_{u,d,s}\to K_0^{\ast }(1430)P$ and $K_0^{\ast }(1430)V$ decays within QCD factorization
• Revisiting radiative decays of $1^{+-}$ heavy quarkonia in the covariant light-front approach
• Search for $C=+$ charmonium and XYZ states in $e^{+}{e}^{-}\to \gamma +H$ at BESIII
• Hadronic Production of $ch{i}_c$-mesons at LHC
• Two-photon decay of P-wave positronium: a tutorial
• Lattice calculation of ${\chi }_{c0}\to 2\gamma$ decay width