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research article
Observation of a Charmoniumlike Enhancement in the γγ→ωJ/ψ Process
We report the results of a search for a charmoniumlike state produced in the process gamma gamma -> omega J/psi in the 3.9-4.2 GeV = c(2) mass region. We observe a significant enhancement, which is well described by a resonant shape with mass M = (3915 +/- 3 +/- 2_ MeV/c(2) and total width Gamma = (17 +/- 10 +/- 3) MeV. This enhancement may be related to one or more of the three charmoniumlike states so far reported in the 3.90-3.95 GeV= c(2) mass region.
Type
research article
Web of Science ID
WOS:000275252500011
Authors
Uehara, S.
•
Aushev, T.
•
Bakich, A. M.
•
Belous, K.
•
Bhardwaj, V.
•
Bischofberger, M.
•
Bračko, M.
•
Browder, T. E.
•
Chang, P.
•
Chen, A.
Publication date
2010
Published in
Volume
104
Issue
9
Article Number
092001
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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