https://doi.org/10.1140/epja/i2012-12066-9
Regular Article - Theoretical Physics
Heavy quarkonium 2S states in the light-front quark model
1
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, 100871, Beijing, China
2
Center for High Energy Physics, Peking University, 100871, Beijing, China
Received:
13
October
2011
Revised:
19
March
2012
Accepted:
26
March
2012
Published online:
17
May
2012
We study the charmonium 2S states ψ′ and η′ c , and the bottomonium 2S states Υ′ and η′ b , 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(ψ′→γη′ c ) are made. The 2S wave function may help us learn more about the structure of these heavy quarkonia.
© SIF, Springer-Verlag Berlin Heidelberg, 2012
