Observation of a charmoniumlike enhancement in the gammagamma-->omega(J)/psi process.
We report the results of a search for a charmoniumlike state produced in the process gammagamma-->omegaJ/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.
Uehara
S
S
High Energy Accelerator Research Organization (KEK), Tsukuba.
Aushev
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Bakich
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Belous
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Bhardwaj
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Bischofberger
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Bracko
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Browder
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Chang
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Chen
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Chen
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Cheon
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Chiang
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Choi
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Dalseno
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Drutskoy
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Eidelman
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Epifanov
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Feindt
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Gabyshev
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Haba
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Hayasaka
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Hayashii
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Hoshi
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Hou
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Hsiung
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Hyun
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Inami
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Itoh
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Iwabuchi
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Iwasaki
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Iwasaki
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Joshi
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Kang
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Kawasaki
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Kiesling
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Kim
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Kim
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Kim
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Kim
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Krizan
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Krokovny
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Kumita
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Kwon
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Kyeong
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Lange
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Lee
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Lee
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Li
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Liu
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Liu
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Liventsev
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Louvot
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Miyabayashi
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Miyata
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Miyazaki
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Nakano
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Nakazawa
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Natkaniec
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Nishida
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Nitoh
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Ogawa
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Ohshima
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Okuno
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Olsen
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Pakhlov
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Pakhlova
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Park
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Park
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Park
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Pestotnik
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Petric
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Piilonen
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Röhrken
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Ryu
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Sahoo
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Sakai
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Schneider
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Schwanda
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Sevior
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Shen
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Shwartz
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Singh
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Solovieva
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Staric
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Teramoto
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Trabelsi
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Unno
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Uno
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Urquijo
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Varner
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Vervink
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Wang
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Wang
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Watanabe
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Wedd
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Won
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Yabsley
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Yamashita
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Yuan
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Zhang
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Zivko
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Zyukova
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