Study of the CKM angle γ sensitivity using flavor untagged Bs0→～(D)(*)0φ decays

• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: PARTICLES AND FIELDS
• 页码范围: 56-92
• 页数: 37页
• 语种: 英文
• DOI: 10.1088/1674-1137/abd16d

摘要

A sensitivity study on the measurement of the CKM angle y from Bos→-D(*)0φdecays is conducted us-ing the D-meson reconstructed in the quasi flavour-specific modes Kn,K3rr,and Knr0,as well as CP-eigenstate modes KK and nr,where the notation-D～0 corresponds to a D0 or-D0 meson.The LHCb experiment is presented as a use case.A statistical uncertainty of approximately 8°-19° can be achieved with the pp collision data collected in the LHCb experiment from 2011 to 2018.The sensitivity to y should be of the order 3°-8° after accumulating 23 fb-1of pp collision data by 2025,whereas it is expected to improve further by 300 fb-1 by the second half of the 2030 decade.The accuracy is dependent on the strong parametersrB!)and 6B*),which together with ydescribe the interfer-ence between the leading amplitudes of the Bso→-D(*)0φdecays.