BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Workshop for Two-Photon Physics and New Detection Technology DTSTART:20260516T010000Z DTEND:20260517T090000Z DTSTAMP:20261102T050600Z UID:indico-event-29263@indico.ihep.ac.cn CONTACT:xiaolong@fudan.edu.cn DESCRIPTION:Two-photon collisions constitute a prominent process in electr on-positron colliders\, producing final states with positive charge parity such as $\\pi^0$ and $\\chi_c(3915)$. These collisions play a critical ro le in discovering exotic hadronic states. While characterized by a small c ross section\, the increasing luminosity of modern colliders enables novel approaches to explore physics beyond the Standard Model – including glu eball searches\, charmonium-like state studies\, and future Higgs boson pr oduction at facilities like CEPC and FCC-ee. \n\nThe Belle II experiment \, operating at a center-of-mass energy of $\\sqrt{s} \\approx 10.6$ GeV\, has achieved sustained data-taking with instantaneous luminosity exceedin g $5 \\times 10^{34}$ cm$^{-2}$s$^{-1}$\, marking a transformative era for two-photon physics. However\, the electron-positron pairs ($e^+e^-$) in t wo-photon final states frequently escape detection in the Belle II apparat us\, resulting in low reconstruction efficiency and elevated background le vels. \n\nTo address these limitations\, this workshop will: \n1. Exam ine two-photon collision physics in electron-positron colliders \n2. Dis cuss innovative detector technologies for measuring escaping $e^+e^-$ pair s \n3. Explore designs for complementary external detection systems\n\nT he workshop will be at the Yan Garden (燕园)\, Handan Campus\, Fudan Uni versity\, Shanghai.\n\n\n\nContact persons: Xiaolong Wang (xiaolong@fudan. edu.cn)\, Heting Li (liheting@fudan.edu.cn)\n\n \n\nZoom link:\n\nMay 16: https://zoom.us/j/92099801228?pwd=jjVDd37Fwv2xbkRb7RsMzze1jbXqTv.1\n \nMay 17: https://zoom.us/j/93077196821?pwd=RYqgJwQ2XR6L1afAedBau8MGcu htMQ.1\n\nHotel:\n\nM One Hotel美壹酒店\n\nAdd：No.6 Weide Road\, Yan gpu District\,Shanghai\n\n地址：上海市杨浦区伟德路6号\n\n \n \nZhengda Hotel正大宾馆（卿云宾馆）\n\nAdd：Southeast Corner of Fudan University Campus\, No.220 Handan Road\, Yangpu District\,Shanghai\ n\n地址：上海市杨浦区邯郸路220号复旦大学校内东南角\n \n \n\n\n\nhttps://indico.ihep.ac.cn/event/29263/ URL:https://indico.ihep.ac.cn/event/29263/ END:VEVENT END:VCALENDAR