Production of strangeonium $$\phi (1680)$$ state in electromagnetic probe-driven scatterings and hadron–hadron ultraperipheral collisions
Chen Dong (Department of Physics, Lanzhou University of Technology, Lanzhou, 730050, China); Yuhang Hou (Department of Physics, Lanzhou University of Technology, Lanzhou, 730050, China); Xiao-Yun Wang (Department of Physics, Lanzhou University of Technology, Lanzhou, 730050, China, Lanzhou Center for Theoretical Physics, Key Laboratory of Theoretical Physics of Gansu Province, Lanzhou University, Lanzhou, Gansu, 730000, China); Ya-Ping Xie (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China, University of Chinese Academy of Sciences, Beijing, 100049, China); Xurong Chen (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China, University of Chinese Academy of Sciences, Beijing, 100049, China, Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou, 510006, China); et al - Show all 6 authors
In this work, the $$\gamma p\rightarrow \phi (1680) p$$ reaction is systematically studied based on the two gluon exchange model and the pomeron model. The calculation results show that the total cross section of $$\phi (1680)$$ photoproduction can reach more than 80 nb near the center-of-mass energy $$W=4$$ GeV, so it is suggested that JLab and other experiments carry out relevant measurements. Moreover, under the framework of the vector meson dominance assumption, the scattering length of $$\phi (1680)$$ and proton interaction is estimated as $$0.07\pm 0.01$$ fm from the cross sections predicted by the theoretical models, which is on the same order of magnitude as the $$\phi (1020)$$ -p scattering length. In addition, the total cross section, number of events and rapidity distribution of $$\phi (1680)$$ production are predicted at Electron-Ion colliders (EICs) and ultra-peripheral collisions (UPCs) by using eSTARlight and STARlight code. The study of $$\phi (1680)$$ and relevant properties is of enlightening significance in better understanding the strangeonium family spectrum, and provides necessary data support for the future experiment of EICs and UPCs.
