Measurement of the CKM angle φ1 in B0D¯(*)0h0, D¯0KS0π+π decays with time-dependent binned Dalitz plot analysis

V. Vorobyev et al. (Belle Collaboration)
Phys. Rev. D 94, 052004 – Published 6 September 2016

Abstract

We report a measurement of the CP-violation parameter φ1 obtained in a time-dependent analysis of B0D¯(*)0h0 decays followed by D¯0KS0π+π decay. A model-independent measurement is performed using the binned Dalitz plot technique. The measured value is φ1=11.7°±7.8°(stat)±2.1°(syst). Treating sin2φ1 and cos2φ1 as independent parameters, we obtain sin2φ1=0.43±0.27(stat)±0.08(syst) and cos2φ1=1.06±0.33(stat)0.15+0.21(syst). The results are obtained with a full data sample of 772×106BB¯ pairs collected near the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e collider.

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  • Received 20 July 2016

DOI:https://doi.org/10.1103/PhysRevD.94.052004

© 2016 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
  1. Properties
Particles & Fields

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Vol. 94, Iss. 5 — 1 September 2016

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