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Measurements of branching fractions and CP asymmetries and studies of angular distributions for B→ϕϕK decays

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BABAR (Including:

Lees, J. P., Poireau, V., Prencipe, E., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M. (Maurizio), Milanes, D. A., Palano, A., Pappagallo, M. et al.
). (2011) Measurements of branching fractions and CP asymmetries and studies of angular distributions for B→ϕϕK decays. Physical Review D, Vol.84 (No.1). 012001. ISSN 0556-2821

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Abstract

We present branching fraction and CP asymmetry measurements as well as angular studies of B -> phi phi K decays using 464 x 10(6) B (B) over bar events collected by the BABAR experiment. The branching fractions are measured in the phi phi invariant mass range below the eta(c) resonance (m(phi phi) < 2.85 GeV). We find B(B(+) -> phi phi K(+)) = (5.6 +/- 0.5 +/- 0.3) x 10(-6) and B(B(0) -> phi phi K(0)) = (4.5 +/- 0.8 +/- 0.3) x 10(-6), where the first uncertainty is statistical and the second systematic. The measured direct CP asymmetries for the B(+/-) decays are A(CP) = -0.10 +/- 0.08 +/- 0: 02 below the eta(c) threshold (m(phi phi) < 2.85 GeV) and A(CP) = 0.09 +/- 0.10 +/- 0.02 in the eta(c) resonance region (m(phi phi) in [2.94, 3.02] GeV). Angular distributions are consistent with J(P) = 0(-) in the eta(c) resonance region and favor J(P) = 0(+) below the eta(c) resonance.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Branching fractions (Nuclear physics), CP violation (Nuclear physics), Angular distribution (Nuclear physics), Decay schemes (Radioactivity)
Journal or Publication Title: Physical Review D
Publisher: American Physical Society
ISSN: 0556-2821
Date: 5 July 2011
Volume: Vol.84
Number: No.1
Page Range: 012001
Identification Number: 10.1103/PhysRevD.84.012001
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: United States. Dept. of Energy (DOE), National Science Foundation (U.S.) (NSF), Natural Sciences and Engineering Research Council Canada (NSERC), France. Commissariat à l'énergie atomique (CEA), Institut national de physique nucléaire et de physique des particules (IN2P3), Germany. Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Istituto nazionale di fisica nucleare (INFN), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Norges forskningsråd (NFR), Ministry of Education and Science of the Russian Federation (MESRF), Spain. Ministerio de Ciencia e Innovación (MCI), Science and Technology Facilities Council (Great Britain) (STFC)
URI: http://wrap.warwick.ac.uk/id/eprint/38718

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