1. IE browser is NOT supported anymore. Please use Chrome, Firefox or Edge instead.
2. If you are a new user, please register to get an IHEP SSO account through https://login.ihep.ac.cn/registlight.jsp Any questions, please email us at helpdesk@ihep.ac.cn or call 88236855.
3. If you need to create a conference in the "Conferences, Workshops and Events" zone, please email us at helpdesk@ihep.ac.cn.
4. The max file size allowed for upload is 100 Mb.
16–21 Aug 2019
Guilin Bravo Hotel, Guilin, China
Asia/Shanghai timezone

Measurement of the CP-violating phase phi_s at LHCb

17 Aug 2019, 15:35
20m
Duxiu Room (Guilin Bravo Hotel, Guilin, China)

Duxiu Room

Guilin Bravo Hotel, Guilin, China

14 South Ronghu Road, Xiangshan, Guilin 541002, Guangxi, China
Parallel Session 4: Hadron decays, production and interactions Session 4: Hadron decays, production and interactions

Speaker

Ms Xuesong Liu (Tsinghua University)

Description

Decays of the Bs meson via b ->c cbar s transitions such as Bs0 -> J/psi K K and Bs0 -> J/psi pi pi are sensitive to the CP-violating phase phi_s, which is known with a good precision from global fits based on the Standard Model. Physics beyond the Standard model can affect the Bs0-Bs0bar oscillations or contribute to second-order processes, introducing a sizable shift in phi_s and providing evidence for new dynamics. In addition, the Bs0 decay width and the decay width difference between the Bs0 mass eigenstates can be measured precisely in b -> c cbar s transitions. We present the first Run 2 measurements of these quantities at LHCb.

Primary author

Ms Xuesong Liu (Tsinghua University)

Presentation materials