Search for charmonium and charmoniumlike states in y (1S) radiative decays

C. P. Shen, X. L. Wang, C. Z. Yuan, P. Wang, I. Adachi, H. Aihara, T. Aushev, A. M. Bakich, V. Balagura, K. Belous, V. Bhardwaj, M. Bischofberger, M. Bračko, T. E. Browder, M. C. Chang, K. F. Chen, P. Chen, B. G. Cheon, Y. Choi, J. DalsenoM. Danilov, Z. Doleal, S. Eidelman, N. Gabyshev, H. Ha, J. Haba, K. Hayasaka, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, H. J. Hyun, K. Inami, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Julius, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, C. Kiesling, H. J. Kim, M. J. Kim, Y. J. Kim, B. R. Ko, P. Križlan, T. Kuhr, A. Kuzmin, J. S. Lange, M. J. Lee, S. H. Lee, R. Leitner, J. Li, C. Liu, R. Louvot, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, G. B. Mohanty, R. Mussa, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, T. Ohshima, S. Okuno, S. L. Olsen, G. Pakhlova, C. W. Park, H. Park, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Röhrken, S. Ryu, Y. Sakai, O. Schneider, C. Schwanda, K. Senyo, M. E. Sevior, L. Shang, M. Shapkin, J. G. Shiu, B. Shwartz, P. Smerkol, E. Solovieva, S. Stanič, M. Starič, Y. Teramoto, T. Uglov, Y. Unno, S. Uno, G. Varner, K. Vervink, C. H. Wang, M. Z. Wang, R. Wedd, E. Won, Y. Yamashita, M. Yamauchi, C. C. Zhang, Z. P. Zhang, P. Zhou, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Using a sample of 102×106 Υ(1S) events collected with the Belle detector, we report on the first search for charge-parity-even charmonium and charmoniumlike states in Υ(1S) radiative decays. No significant χcJ or ηc signal is observed and 90% C.L. limits on B(Υ(1S)→γχc0)<6.5×10⊃-4, B(Υ(1S)→γχc1)<2.3×10⊃-5, B(Υ(1S)→γχc2)<7.6×10⊃-6, and B(Υ(1S)→γηc)<5.7×10⊃-5 are obtained. The product branching fraction limits B(Υ(1S)→γX(3872)) B(X(3872)→π⊃+π⊃-J/ψ)<1.6×10⊃-6, B(Υ(1S)→γX(3872))B(X(3872)→π⊃+π⊃-π0J/ ψ)<2.8×10⊃-6, B(Υ(1S)→γX(3915))B(X(3915) →ωJ/ψ)<3.0×10⊃-6, and B(Υ(1S) →γY(4140))B(Y(4140)→J/ψ)<2.2×10⊃-6 are obtained at the 90% C.L. Furthermore, no evidence is found for excited charmonium states below 4.8GeV/c2.

Original languageEnglish
Article number051504
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number5
Publication statusPublished - 2010 Sept 22

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Search for charmonium and charmoniumlike states in y (1S) radiative decays'. Together they form a unique fingerprint.

Cite this