Article ; Online: Measurement of CP Violation in B^{0}→K_{S}^{0}π^{0} Decays at Belle II.
2023 Volume 131, Issue 11, Page(s) 111803
Abstract: We report a measurement of the CP-violating parameters C and S in B^{0}→K_{S}^{0}π^{0} decays ... decay-time distribution of a sample of 415 signal events. We obtain C=-0.04_{-0.15}^{+0.14}±0.05 and S=0 ...
Abstract | We report a measurement of the CP-violating parameters C and S in B^{0}→K_{S}^{0}π^{0} decays at Belle II using a sample of 387×10^{6} BB[over ¯] events recorded in e^{+}e^{-} collisions at a center-of-mass energy corresponding to the ϒ(4S) resonance. These parameters are determined by fitting the proper decay-time distribution of a sample of 415 signal events. We obtain C=-0.04_{-0.15}^{+0.14}±0.05 and S=0.75_{-0.23}^{+0.20}±0.04, where the first uncertainties are statistical and the second are systematic. |
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Language | English |
Publishing date | 2023-09-29 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 208853-8 |
ISSN | 1079-7114 ; 0031-9007 |
ISSN (online) | 1079-7114 |
ISSN | 0031-9007 |
DOI | 10.1103/PhysRevLett.131.111803 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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