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Measurement of CP-violating asymmetries in B0→(ρπ)0 using a time-dependent Dalitz plot analysis

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BABAR Collaboration (Including:

Aubert, B., Bona, M., Boutigny, D., Karyotakis, Y., Lees, J. P., Poireau, V., Prudent, X., Tisserand, V., Zghiche, A., Garra Tico, J. et al.
). (2007) Measurement of CP-violating asymmetries in B0→(ρπ)0 using a time-dependent Dalitz plot analysis. Physical Review D, Vol.76 (No.1). Article: 012004. ISSN 1550-7998

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Abstract

We report a measurement of CP-violating asymmetries in B-0 ->(rho pi)(0)->pi(+)pi(-)pi(0) decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375x10(6) Upsilon(4S)-> B (B) over bar decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form-factor terms occurring in the time-dependent decay rate of the B-0 meson. We derive the physically relevant quantities from these coefficients. In particular, we measure a constraint on the angle alpha of the unitarity triangle.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review D
Publisher: American Physical Society
ISSN: 1550-7998
Date: July 2007
Volume: Vol.76
Number: No.1
Number of Pages: 21
Page Range: Article: 012004
Identification Number: 10.1103/PhysRevD.76.012004
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
URI: http://wrap.warwick.ac.uk/id/eprint/31498

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