4.7 Article

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

Journal

PHYSICAL REVIEW D
Volume 84, Issue 1, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.84.012001

Keywords

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Funding

  1. US Department of Energy and the National Science Foundation
  2. Natural Sciences and Engineering Research Council (Canada)
  3. Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France)
  4. Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany)
  5. Istituto Nazionale di Fisica Nucleare (Italy)
  6. Foundation for Fundamental Research on Matter (The Netherlands)
  7. Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Ciencia e Innovacion (Spain)
  8. Science and Technology Facilities Council (United Kingdom)
  9. European Union
  10. A.P. Sloan Foundation (USA)
  11. Binational Science Foundation (USA-Israel)
  12. Direct For Mathematical & Physical Scien
  13. Division Of Physics [0969487] Funding Source: National Science Foundation

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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.

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