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Abstract：
Study of CP violation in the flavor sector is crucial not only to the test of the standard CKM mechanism, but also to probing the matter-anti-matter asymmetry in our universe. As the experimental measurements have become more precise, large theoretical uncertainties has become the drawback to precision studies, which suffers mainly from poor predictions on strong phases. We propose two new types of CP violation effects: one is the CP asymmetry induced by interference between different oscillating paths of neutral mesons in decays; the other one is the CP asymmetries induced by T-odd and T-even operators, whose dependences on strong phases are complementary. We will discuss their potential discoveries at experiments and potential physical significance.
Biography:
Qin Qin received his PhD in 2016 from IHEP, CAS, and held a postdoc position at University of Siegen from 2016 to 2019, before joining School of Physics at Huazhong University of Science and Technology as an associate professor. His research mainly focuses on heavy quark physics, and has made the following contributions: (1) state-of-the-art theoretical calculation of the inclusive b->sll decay; (2) accurate prediction of the discovery channel and the signal yield of the doubly charmed tetraquark Tcc; (3) identification of a new type of CP violation effect induced by neutral meson mixing interference; (4) demonstration of the strong-phase-dependence complementarity of the CP asymmetries induced by a type of T-odd and T-even operators.
Online meeting room：https://meeting.tencent.com/dm/w9apOun2xcZO （id:
891617062 passcode: 123456）
Host：Dr. Jun Zeng