Gershon, T. J., Harrison, P. F., Latham, Thomas and Puccio, E. M. T. (2012) Study of CP violation in Dalitz-plot analyses of B0→K+K-KS0, B+→K+K-K+, and B+→KS0KS0K+. Physical Review D (Particles, Fields, Gravitation and Cosmology), Volume 85 (Number 11). Article number 112010. doi:10.1103/PhysRevD.85.112010 ISSN 1550-7998.

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Abstract

We perform amplitude analyses of the decays B0→K +K -KS0, B +→K +K -K +, and B +→KS0KS0K +, and measure CP-violating parameters and partial branching fractions. The results are based on a data sample of approximately 470×106 BB̄ decays, collected with the BABAR detector at the PEP-II asymmetric-energy B factory at the SLAC National Accelerator Laboratory. For B +→K +K -K +, we find a direct CP asymmetry in B +→(1020)K + of A CP=(12.8±4.4±1.3)%, which differs from zero by 2.8σ. For B0→K +K -KS0, we measure the CP-violating phase β eff((1020)KS0)=(21±6±2)°. For B +→KS0KS0K +, we measure an overall direct CP asymmetry of A CP=(4-5+4±2)%. We also perform an angular-moment analysis of the three channels and determine that the f X(1500) state can be described well by the sum of the resonances f 0(1500), f2′(1525), and f 0(1710). © 2012 American Physical Society.

Item Type:	Journal Article
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title:	Physical Review D (Particles, Fields, Gravitation and Cosmology)
Publisher:	American Physical Society
ISSN:	1550-7998
Official Date:	22 June 2012
Dates:	Date Event 22 June 2012 Published
Volume:	Volume 85
Number:	Number 11
Page Range:	Article number 112010
DOI:	10.1103/PhysRevD.85.112010
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access

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