Observation of a Charmoniumlike Enhancement in the γγ→ωJ/ψ Process

Uehara, S.; Aushev, T.; Bakich, A. M.; Belous, K.; Bhardwaj, V.; Bischofberger, M.; Bračko, M.; Browder, T. E.; Chang, P.; Chen, A.; Chen, P.; Cheon, B. G.; Chiang, C.-C.; Cho, I.-S.; Choi, S.-K.; Choi, Y.; Dalseno, J.; Drutskoy, A.; Eidelman, S.; Epifanov, D.; Feindt, M.; Gabyshev, N.; Ha, H.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y. B.; Hyun, H. J.; Inami, K.; Itoh, R.; Iwabuchi, M.; Iwasaki, M.; Iwasaki, Y.; Joshi, N. J.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, J. H.; Kim, Y. I.; Kim, Y. J.; Ko, B. R.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kumita, T.; Kuzmin, A.; Kwon, Y.-J.; Kyeong, S.-H.; Lange, J. S.; Lee, M. J.; Lee, S.-H.; Li, J.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; Matyja, A.; Mconie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shiu, J.-G.; Shwartz, B.; Singh, J. B.; Smerkol, P.; Solovieva, E.; Starič, M.; et al.

doi:10.1103/PhysRevLett.104.092001

research article

Observation of a Charmoniumlike Enhancement in the γγ→ωJ/ψ Process

Uehara, S.

•

Aushev, T.

•

Bakich, A. M.

2010

Physical Review Letters

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

DOI

10.1103/PhysRevLett.104.092001

Web of Science ID

WOS:000275252500011

Author(s)

Uehara, S.

Aushev, T.

Bakich, A. M.

Belous, K.

Bhardwaj, V.

Bischofberger, M.

Bračko, M.

Browder, T. E.

Chang, P.

Chen, A.

Date Issued

2010

Published in

Physical Review Letters

Volume

104

Issue

9

Article Number

092001

Subjects

Belle

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units

LPHE

Available on Infoscience

November 5, 2010

Use this identifier to reference this record

https://infoscience.epfl.ch/handle/20.500.14299/57007