Heavy quarkonium 2S states in light-front quark model

Abstract

We study the charmonium 2S states ${\psi }^{\prime }$ and ${\eta }_c^{\prime }$, and the bottomonium 2S states ${{\rm Y}}^{\prime }$ and ${\eta }_b^{\prime }$, using the light-front quark model and the 2S state wave function of harmonic oscillator as the approximation of the 2S quarkonium wave function. The decay constants, transition form factors and masses of these mesons are calculated and compared with experimental data. Predictions of quantities such as Br$({\psi }^{\prime }\to \gamma {\eta }_c^{\prime })$ are made. The 2S wave function may help us learn more about the structure of these heavy quarkonia.

arXiv comment5 latex pages, final version for journal publication

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Cited by in corpus (8)

• Spectroscopy of ground and excited states of pseudoscalar and vector charmonium and bottomonium
• Mixing effects on 1S and 2S state heavy mesons in the light-front quark model
• Charmonium and Charmoniumlike States at the BESIII Experiment
• Exclusive photoproduction of charmonia in $\gamma p\to Vp$ and $pp\to pVp$ reactions within $k_t$-factorization approach
• Self-consistent $M1$ radiative transitions of excited $B_c$ and heavy quarkonia with different polarizations in the light-front quark model
• Updated measurements of the M1 transition $\psi (3686)\to \gamma {\eta }_c(2S)$ with ${\eta }_c(2S)\to K\bar{K}\pi$
• Radiative transitions among the vector and scalar heavy quarkonium states with covariant light-front quark model
• Radiative Decays of Vector Mesons with Light-Cone Sum Rules