000002952 001__ 2952
000002952 005__ 20220405141016.0
000002952 037__ $$aBELLE2-TALK-CONF-2022-025
000002952 041__ $$aeng
000002952 100__ $$aYun-Tsung Lai
000002952 245__ $$aProspects of the new physics search at Belle II by precise measurements of the CKM matrix elements
000002952 260__ $$aJPS Spring 2022$$c2022-03-15
000002952 300__ $$amult. p
000002952 500__ $$a30 min
000002952 520__ $$aIn Standard Model, CKM matrix describes the quark coupling strength with weak interaction, as the determination on the elements is always an important field in flavor physics. Deviation from the unitarity of the matrix can be an indication to physics beyond the Standard Model. Measurements on various B decay mechanisms provide experimental constraints on each of the matrix elements, as some of them are unique to B factories. Belle II experiment at SuperKEKB has started beam collision since 2018. It is designed to reach an expected instantaneous luminosity of 6*10^35 cm^-2s^-1 and a integrated luminosity of ~50 ab^-1. Measurement in Belle II benefits not only from the larger amount of data but also the better performance in both detectors and software packages. e.g. tracking, vertexing, PID, reconstruction, etc, as they will improve the determination on CKM matrix elements in various aspects. This talk will review on status of measurements associated to each element, the possible improvement on the sensitivity and the prospect in Belle II.
000002952 8560_ $$fyun-tsung.lai@ipmu.jp
000002952 8564_ $$uhttps://docs.belle2.org/record/2952/files/BELLE2-TALK-CONF-2022-025.pdf