Search for resonant B± → K± h → K± γ γ decays at Belle

J. Wicht, I. Adachi, H. Aihara, D. Anipko, V. Aulchenko, T. Aushev, A. M. Bakich, E. Barberio, I. Bedny, U. Bitenc, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. ChenB. G. Cheon, I. S. Cho, Y. Choi, Y. K. Choi, J. Dalseno, M. Dash, S. Eidelman, D. Epifanov, S. Fratina, A. Go, A. Gorišek, H. Ha, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, L. Hinz, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, K. Ikado, K. Inami, A. Ishikawa, H. Ishino, M. Iwasaki, Y. Iwasaki, C. Jacoby, D. H. Kah, H. Kaji, J. H. Kang, P. Kapusta, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, S. McOnie, T. Medvedeva, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, D. Mohapatra, G. R. Moloney, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, Y. Onuki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, F. J. Ronga, Y. Sakai, T. Schietinger, O. Schneider, J. Schümann, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. B. Singh, A. Somov, S. Stanič, M. Starič, H. Stoeck, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, I. Tikhomirov, T. Tsukamoto, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Ushiroda, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, A. Vinokurova, C. H. Wang, P. Wang, Y. Watanabe, R. Wedd, Eunil Won, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, Z. P. Zhang, V. Zhilich, A. Zupanc, N. Zwahlen

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5 Citations (Scopus)

Abstract

We report measurements and searches for resonant B± → K± h → K± γ γ decays where h is a η, η, ηc, ηc (2 S), χc 0, χc 2, J / ψ meson or the X (3872) particle. The results are based on a data sample containing 535 million B over(B, ̄) pairs collected with the Belle detector at the KEKB e+ e- asymmetric-energy collider operating at the Υ{hooked} (4 S) resonance. Signals are observed in the modes with η and η, and we obtain evidence for a signal in the mode with ηc. We measure B (B± → K± η → K± γ γ) = (0.87-0.15 +0.16 (stat)-0.07 +0.10 (syst)) × 10-6, B (B± → K± η → K± γ γ) = (1.40-0.15 +0.16 (stat)-0.12 +0.15 (syst)) × 10-6 and B (B± → K± ηc → K± γ γ) = (0.22-0.07 +0.09 (stat)-0.02 +0.04 (syst)) × 10-6. We set upper limits on the branching fractions of the other modes.

Original languageEnglish
Pages (from-to)323-329
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume662
Issue number4
DOIs
Publication statusPublished - 2008 May 1

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Keywords

  • B
  • Charmonia
  • X (3872)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Wicht, J., Adachi, I., Aihara, H., Anipko, D., Aulchenko, V., Aushev, T., Bakich, A. M., Barberio, E., Bedny, I., Bitenc, U., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., Browder, T. E., Chang, P., Chao, Y., Chen, A., ... Zwahlen, N. (2008). Search for resonant B± → K± h → K± γ γ decays at Belle. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 662(4), 323-329. https://doi.org/10.1016/j.physletb.2008.03.029