BABAR Collaboration (Including:

). (2008) Dalitz plot analysis of the decay B-0((B)over-bar(0))-> K-+/-pi(-/+)pi(0). Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.78 (No.5). doi:10.1103/PhysRevD.78.052005 ISSN 1550-7998.

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Abstract

We report a Dalitz-plot analysis of the charmless hadronic decays of neutral B mesons to K-+/- pi(-/+) pi(0) With a sample of (231.8 +/- 2.6) x 10(6)Y(4S) -> B (B) over bar B decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B-0 and (B) over bar (0) decays and determine the corresponding CP-averaged branching fractions and charge asymmetries. The inclusive branching fraction and CP-violating charge asymmetry are measured to be B(B-0 -> K+ pi(-) pi(0)) = (35.7(-1.5)(+2.6) +/- 2.2) x 10(-6) and A(CP) -0.030(-0.051)(+0.045) +/- 0.055 where the first errors are statistical and the second systematic. We observe the decay B-0 -> K*(0)(892)pi(0) with the branching fraction B(B-0 -> K*(0)(892)pi(0)) = (3.6(-0.8)(+0.7) +/- 0.4) x 10(-6) This measurement differs from zero by 5.6 standard deviations (including the systematic uncertainties). The selected sample also contains B-0 -> (D) over bar (0) pi(0) decays where (D) over bar (0) -> K+ pi(-), and we measure B(B-0 -> (D) over bar (0) pi(0)) = (2.93 +/- 0.17 +/- 0.18) x 10(-4).

Item Type:	Journal Article
Subjects:	Q Science > QB Astronomy Q Science > QC Physics
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:	12 September 2008
Dates:	Date Event 12 September 2008 Published
Volume:	Vol.78
Number:	No.5
Number of Pages:	26
DOI:	10.1103/PhysRevD.78.052005
Status:	Peer Reviewed
Publication Status:	Published
Funder:	U.S. Department of Energy and National Science Foundation, Natural Sciences and Engineering Research Council (Canada), Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), Istituto Nazionale di Fisica Nucleare (Italy), Foundation for Fundamental Research on Matter (The Netherlands), Research Council of Norway, Ministry of Education and Science of the Russian Federation, Ministerio de Educacion y Ciencia (Spain), Science and Technology Facilities Council (United Kingdom), Marie-Curie IEF program (European Union), A. P. Sloan Foundation

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