学术报告（1月28日19:30-23:00）：Solar neutrino scattering into massive sterile neutrino and Dark Matter experiments

主持人：唐健 副教授

报告简介：​The recent Xenon1T excess can be explained by solar neutrino scattering with electron via a light mediator, either scalar or vector, in addition to many other explanations from the dark sector. Since only the recoil electron is observable, a keV sterile neutrino instead of an active neutrino can appear in the final state. The sterile neutrino allows pseudoscalar mediator to explain the Xenon1T excess which was thought impossible. In addition, nonzero recoil energy lower bound arises from the sterile neutrino mass, which can be used to testify if the sterile neutrino is massive or not. We also briey discuss the case of sterile neutrino final state with light Z0 mediator.

报告人简介：Pedro Pasquini is a postdoctoral researcher at Tsun-Dao Lee Institute in Shanghai Jiao-Tong University. He obtained his PhD in flavour physics at the University of Campinas in Brazil in 2019 and briefly worked at the University of São Paulo as a postdoc before joining SJTU. Pedro specializes in the physics of neutrino oscillations, neutrino mass models and physics beyond the Standard Model.