报告人:Prof. Andrzej Kupść (Uppsala University) 报告时间:2022年06月24日 15:00 - 16:30 (Beijing time) 摘要: Decays of strange baryons provide complementary information to the decays of kaons for searches of the physics beyond theStandard Model. Two possible strategies are represented in two reports submitted to recentSnowmass APS study. The first is searches for rare and forbidden processes. The second issearches for CP violationin non-leptonic two-body weak decays of strangebaryons. The renewedinterest in the secondstrategy is due to thenovel method that was applied in series of measurements at BESIII, including the recent results published in Nature Physics and Nature. The method uses spin entangled and polarized hyperon-antihyperon pairs from J/ψ decays. In the talk I will describe the method and explain how the spin polarization and correlations contributions determine precision of theCPV tests. I will discusspossible CPV tests in strange baryon decays at next generation electron-positron J/ψ factories. In particular benefits of using longitudinally-polarized electron beamswill be emphasized. 报告人简介: Prof. Andrzej Kupść is a researcher at Uppsala University, Sweden and a Professor at the National Centre for Nuclear Research, Poland. 2021 State (full) Professor, nomination by the President of the Republic of Poland 2011 DSc (Habilitation), Institute of Nuclear Studies (INS), Poland 2009 Docent, Uppsala University (UU), Sweden 1994 PhD, Institute of Nuclear Studies, Poland Kupść 教授自 2019 年起担任 BESIII 合作组重子小组召集人, 他也是 LHCb,KLOE-2 合作组成员. 2019 年, 受中科院 PIFI 项目和基金委资助访问中科院高能物理研究所一年. Zoom link: link Zoom meeting ID: 863 5502 2544; password: 186352