Production of bottomonium-like Zb states in e-h and ultraperipheral h-h collisions

• 作者: Xiao-Yun Wang Wei Kou Qing-Yong Lin Ya-Ping Xie Xurong Chen Alexey Guskov
• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（5）
• 所属期刊栏目: NUCLEAR PHYSICS
• 页码范围: 122-128
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1137/abe3ec

摘要

The photoproduction of the bottomonium-like states Zb(10610) and Zb(10650) via γp scattering is studied within an effective Lagrangian approach and the vector-meson-dominance model.The Regge model is employed to calculate the photoproduction of Zb states via the t-channel with π exchange.The numerical results show that the values of the total cross-sections of Zb(10610) and Zb(10650) can reach 0.09 nb and 0.02 nb,respectively,near the center-of-mass energy of 22 GeV.Experimental measurements and studies of the photoproduction of Zb states near the energy region around W (=) 22 GeV are suggested.Moreover,with the help of eSTARlight and STAR-light programs,we have obtained the cross-sections and numbers of events for Zb(10610) production in electron-ion collisions (EIC) and ultraperipheral collisions (UPCs).The results show that a considerable number of Zb(10610)events can be produced in the relevant experiments on EICs and UPCs.We have also calculated the rates and kinematic distributions for γp → Zbn in ep and pA collisions via EICs and UPCs.The results will provide an important reference for the RHIC,LHC,EIC-US,LHeC,and FCC experiments in searching for bottomonium-like Zb states.