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Study of B-meson decays to eta K-c(*), eta(c)(2S)K(*), and eta(c)gamma K(*)

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BABAR Collaboration (Including:

Aubert, B., Bona, M., Karyotakis, Y., Lees, J. P., Poireau, V., Prencipe, E., Prudent, X., Tisserand, V., Garra Tico, J., Grauges, E. et al.
). (2008) Study of B-meson decays to eta K-c(*), eta(c)(2S)K(*), and eta(c)gamma K(*). Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.78 (No.1). article no.012006. ISSN 1550-7998

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Abstract

We study two-body B-meson decays to a charmonium state (eta(c), eta(c)(2S) or h(c)) and a K+ or K-*0(892) meson using a sample of 349 fb(-1) of data collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. We measure B(B-0 -> eta K-c*(0)) = (5.7 +/- 0.6(stat) +/- 0.9(syst)) x 10(-4), B(B-0 -> eta(c)(2S)K*(0)) < 3.9 x 10(-4), B(B+ -> h(c)K(+)) x B(h(c) -> eta(c)gamma) < 4.8 x 10(-5) and B(B-0 -> h(c)K*(0)) x B(h(c) -> eta(c)gamma) < 2.2 x 10(-4) at the 90% C.L., and B(eta(c)(2S) -> K (K) over bar pi) = (1.9 +/- 0.4(stat) +/- 1.1(syst))%. We also measure the mass and width of the eta(c) meson to be m(eta(c)) = (2985.8 +/- 1.5(stat) +/- 3.1(syst)) MeV/c(2) and Gamma(eta(c)) = (36.3(-3.6)(+3.7)(stat) +/- 4.4(syst)) MeV.

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 (Particles, Fields, Gravitation and Cosmology)
Publisher: American Physical Society
ISSN: 1550-7998
Date: July 2008
Volume: Vol.78
Number: No.1
Number of Pages: 9
Page Range: article no.012006
Identification Number: 10.1103/PhysRevD.78.012006
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 Forschungs-gemeinschaft (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
URI: http://wrap.warwick.ac.uk/id/eprint/29468

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