%0 Generic %1 chen2010decay %A Chen, Hua-Xing %A Cai, Zi-Xing %A Huang, Peng-Zhi %A Zhu, Shi-Lin %D 2010 %K +exotic_hybrid_decays decays hybrid_mesons %R 10.1103/PhysRevD.83.014006 %T The Decay Properties of the 1^-+ Hybrid State %U http://arxiv.org/abs/1010.3974 %X Within the framework of the QCD sum rules, we consider the three-point correlation function, work at the limit q^2 -> 0 and m_-> 0, and pick out the singular term ~ 1q^2 to extract the pionic coupling constants of the 1^-+ hybrid meson. Then we calculate the decay widths of different modes. The decay width of the S-wave modes b_1 \pi, f_1increases quickly as the hybrid meson mass and decay momentum increase. But for the low mass hybrid meson around 1.6 GeV, the P-wave decay mode is very important and its width is around 180 MeV, while the widths of and \eta^are strongly suppressed. We suggest the experimental search of \pi_1(1600) through the decay chains at BESIII: e^+e^- -> J/\psi(\psi') -> \pi_1 +or e^+e^- -> J/\psi(\psi') -> \pi_1 +where the \pi_1 state can be reconstructed through the decay modes \pi_1 -> \rho-> \pi^+\pi^-\pi^0 or \pi_1 -> f_1(1285)\pi^0. It is also interesting to look for \pi_1 using the available BELLE/BABAR data through the process e^+e^- -> \gamma^-> \rho\pi_1, b_1\pi_1, \pi_1 etc.

@misc{chen2010decay, abstract = {Within the framework of the QCD sum rules, we consider the three-point correlation function, work at the limit q^2 -> 0 and m_\pi -> 0, and pick out the singular term ~ {1\over q^2} to extract the pionic coupling constants of the 1^{-+} hybrid meson. Then we calculate the decay widths of different modes. The decay width of the S-wave modes b_1 \pi, f_1\pi increases quickly as the hybrid meson mass and decay momentum increase. But for the low mass hybrid meson around 1.6 GeV, the P-wave decay mode \rho \pi is very important and its width is around 180 MeV, while the widths of \eta \pi and \eta^\prime \pi are strongly suppressed. We suggest the experimental search of \pi_1(1600) through the decay chains at BESIII: e^+e^- -> J/\psi(\psi') -> \pi_1 +\gamma or e^+e^- -> J/\psi(\psi') -> \pi_1 +\rho where the \pi_1 state can be reconstructed through the decay modes \pi_1 -> \rho\pi -> \pi^+\pi^-\pi^0 or \pi_1 -> f_1(1285)\pi^0. It is also interesting to look for \pi_1 using the available BELLE/BABAR data through the process e^+e^- -> \gamma^\ast -> \rho\pi_1, b_1\pi_1, \gamma \pi_1 etc.}, added-at = {2020-05-20T05:16:48.000+0200}, author = {Chen, Hua-Xing and Cai, Zi-Xing and Huang, Peng-Zhi and Zhu, Shi-Lin}, biburl = {https://www.bibsonomy.org/bibtex/2bf2da41088dae15193a3b69642df6fe8/dharnett}, description = {1010.3974.pdf}, doi = {10.1103/PhysRevD.83.014006}, interhash = {dabd7f57032b59aae395ef6800dfa05c}, intrahash = {bf2da41088dae15193a3b69642df6fe8}, keywords = {+exotic_hybrid_decays decays hybrid_mesons}, note = {cite arxiv:1010.3974Comment: one reference corrected}, timestamp = {2020-06-01T16:19:33.000+0200}, title = {The Decay Properties of the 1^{-+} Hybrid State}, url = {http://arxiv.org/abs/1010.3974}, year = 2010 }