Abstract
A measurement of CP-violating observables in B± → D*K± and B± → D*π± decays is made where the photon or neutral pion from the D* → Dγ or D* → Dπ0 decay is not reconstructed. The D meson is reconstructed in the self-conjugate decay modes, D → K0Sπ+π− or D → K0SK+K−. The distribution of signal yields in the D decay phase space is analysed in a model-independent way. The measurement uses a data sample collected in proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of approximately 9 fb−1. The B± → D*K± and B± → D*π± CP-violating observables are interpreted in terms of hadronic parameters and the CKM angle γ, resulting in a measurement of γ = (92+21-17)°. The total uncertainty includes the statistical and systematic uncertainties, and the uncertainty due to external strong-phase inputs.
Original language | English |
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Article number | 118 |
Number of pages | 29 |
Journal | JHEP |
Volume | 2024 |
Issue number | 2 |
DOIs | |
Publication status | Published - 16 Feb 2024 |
Keywords
- B Physics
- CKM Angle Gamma
- CP Violation
- Hadron-Hadron Scattering