4–11 Jul 2018
COEX, SEOUL
Asia/Seoul timezone

Measurement of cos2beta = cos2phi_1 in B^0 to D^{(*)0} h^0 with D to K^0_S pi^+ pi^- decays by a time-dependent Dalitz analysis using BaBar and Belle combined data

6 Jul 2018, 09:20
20m
102 (COEX, Seoul)

102

COEX, Seoul

Parallel Quark and Lepton Flavor Physics Quark and Lepton Flavor Physics

Speaker

Vitaly Vorobyev (Budker Institute of Nuclear Physics (RU))

Description

We report measurements of sin2beta = sin2phi_1 and cos2beta = cos2phi_1 from a time-dependent Dalitz analysis in B^0 to D^{(*)0} h^0 with D to K^0_S pi^+ pi^- decays using BaBar and Belle combined data sample containing 471 + 772 million B meson pairs collected at the Upsilon(4S) resonance. The measurement gives a confirmation of the CP violation in this B decay mode and solves the two-fold ambiguity of the angle beta=phi_1 that can not solely be fixed by the sin2beta = sin2phi_1 measurements in B^0 to charmonium K^0 decays.

Primary authors

Shohei Nishida (KEK) Vitaly Vorobyev (Budker Institute of Nuclear Physics (RU))

Presentation materials