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Observation of Y(3940)-> J/psi omega in B -> J/psi omega K at BABAR

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BABAR Collaboration (Including: Harrison, P. F., Ilić, Jelena, Latham, Thomas and Mohanty, G. B.). (2008) Observation of Y(3940)-> J/psi omega in B -> J/psi omega K at BABAR. Physical Review Letters, Vol.101 (No.8). doi:10.1103/PhysRevLett.101.082001

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.101.082001

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Abstract

We present a study of the decays B-0,B-+ -> J/psi omega K-0,K-+ using 383 x 10(6) B (B) over bar events obtained with the BABAR detector at PEP-II. We observe Y(3940) -> J/psi omega, with mass 3914.6(-3.4)(+3.8)(stat) +/- 2.0(syst) MeV/c(2), and width 34(-8)(+12)(stat) +/- 5(syst) MeV. The ratio of B-0 and B+ decay to YK is 0.27(-0.23)(+0.28)(stat)(-0.01)(+0.04)(syst), and the relevant B-0 and B+ branching fractions are reported.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Radioactive decay, Beta decay
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 22 August 2008
Dates:
DateEvent
22 August 2008Published
Volume: Vol.101
Number: No.8
Number of Pages: 7
DOI: 10.1103/PhysRevLett.101.082001
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), Deutsche Forschungsgemeinschaft (DFG), Istituto nazionale di fisica nucleare (INFN), Stichting voor Fundamenteel Onderzoek der Materie (FOM) [Foundation for Fundamental Research on Matter], Norges forskningsråd [Norwegian Research Council] , 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), European Union (EU), Alfred P. Sloan Foundation, United States-Israel Binational Science Foundation

Data sourced from Thomson Reuters' Web of Knowledge

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