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Search for the decay $B^{0} \to γ γ$

S. Villa¹³, K. Abe⁵, K. Abe³⁸, I. Adachi⁵, H. Aihara⁴⁰, Y. Asano⁴³, T. Aushev⁹, S. Bahinipati³, A. M. Bakich³⁵ et al. (The Belle Collaboration)

A. M. Bakich³⁵, V. Balagura⁹, E. Barberio¹⁶, A. Bay¹³, I. Bedny¹, K. Belous⁸, U. Bitenc¹⁰, I. Bizjak¹⁰, A. Bondar¹, A. Bozek²², M. Bračko^5,15,10, T. E. Browder⁴, Y. Chao²¹, A. Chen¹⁹, W. T. Chen¹⁹, B. G. Cheon², R. Chistov⁹, Y. Choi³⁴, A. Chuvikov²⁹, S. Cole³⁵, J. Dalseno¹⁶, M. Danilov⁹, M. Dash⁴⁴, A. Drutskoy³, S. Eidelman¹, N. Gabyshev¹, A. Garmash²⁹, T. Gershon⁵, G. Gokhroo³⁶, B. Golob^14,10, J. Haba⁵, T. Hara²⁶, K. Hayasaka¹⁷, M. Hazumi⁵, L. Hinz¹³, T. Hokuue¹⁷, Y. Hoshi³⁸, S. Hou¹⁹, W.-S. Hou²¹, K. Ikado¹⁷, A. Imoto¹⁸, K. Inami¹⁷, R. Itoh⁵, M. Iwasaki⁴⁰, Y. Iwasaki⁵, C. Jacoby¹³, J. H. Kang⁴⁵, P. Kapusta²², T. Kawasaki²³, H. R. Khan⁴¹, H. Kichimi⁵, S. K. Kim³², S. M. Kim³⁴, K. Kinoshita³, S. Korpar^15,10, P. Krokovny¹, R. Kulasiri³, C. C. Kuo¹⁹, A. Kuzmin¹, Y.-J. Kwon⁴⁵, G. Leder⁷, T. Lesiak²², S.-W. Lin²¹, D. Liventsev⁹, T. Matsumoto⁴², W. Mitaroff⁷, H. Miyata²³, Y. Miyazaki¹⁷, R. Mizuk⁹, D. Mohapatra⁴⁴, I. Nakamura⁵, E. Nakano²⁵, M. Nakao⁵, Z. Natkaniec²², S. Nishida⁵, S. Ogawa³⁷, T. Ohshima¹⁷, T. Okabe¹⁷, S. Okuno¹¹, S. L. Olsen⁴, H. Ozaki⁵, H. Palka²², C. W. Park³⁴, K. S. Park³⁴, R. Pestotnik¹⁰, L. E. Piilonen⁴⁴, Y. Sakai⁵, N. Sato¹⁷, N. Satoyama³³, T. Schietinger¹³, O. Schneider¹³, C. Schwanda⁷, R. Seidl³⁰, K. Senyo¹⁷, M. E. Sevior¹⁶, M. Shapkin⁸, H. Shibuya³⁷, A. Somov³, N. Soni²⁷, R. Stamen⁵, S. Stanič²⁴, M. Starič¹⁰, T. Sumiyoshi⁴², K. Tamai⁵, N. Tamura²³, M. Tanaka⁵, G. N. Taylor¹⁶, Y. Teramoto²⁵, X. C. Tian²⁸, K. Trabelsi⁴, T. Tsukamoto⁵, S. Uehara⁵, T. Uglov⁹, K. Ueno²¹, S. Uno⁵, P. Urquijo¹⁶, G. Varner⁴, K. E. Varvell³⁵, C. C. Wang²¹, C. H. Wang²⁰, Y. Watanabe⁴¹, J. Wicht¹³, E. Won¹², Q. L. Xie⁶, B. D. Yabsley³⁵, A. Yamaguchi³⁹, M. Yamauchi⁵, J. Ying²⁸, L. M. Zhang³¹, Z. P. Zhang³¹, and D. Zürcher¹³ (The Belle Collaboration)

¹Budker Institute of Nuclear Physics, Novosibirsk
²Chonnam National University, Kwangju
³University of Cincinnati, Cincinnati, Ohio 45221
⁴University of Hawaii, Honolulu, Hawaii 96822
⁵High Energy Accelerator Research Organization (KEK), Tsukuba
⁶Institute of High Energy Physics, Chinese Academy of Sciences, Beijing
⁷Institute of High Energy Physics, Vienna
⁸Institute of High Energy Physics, Protvino
⁹Institute for Theoretical and Experimental Physics, Moscow
¹⁰J. Stefan Institute, Ljubljana
¹¹Kanagawa University, Yokohama
¹²Korea University, Seoul
¹³Swiss Federal Institute of Technology of Lausanne, EPFL, Lausanne
¹⁴University of Ljubljana, Ljubljana
¹⁵University of Maribor, Maribor
¹⁶University of Melbourne, Victoria
¹⁷Nagoya University, Nagoya
¹⁸Nara Women’s University, Nara
¹⁹National Central University, Chung-li
²⁰National United University, Miao Li
²¹Department of Physics, National Taiwan University, Taipei
²²H. Niewodniczanski Institute of Nuclear Physics, Krakow
²³Niigata University, Niigata
²⁴Nova Gorica Polytechnic, Nova Gorica
²⁵Osaka City University, Osaka
²⁶Osaka University, Osaka
²⁷Panjab University, Chandigarh
²⁸Peking University, Beijing
²⁹Princeton University, Princeton, New Jersey 08544
³⁰RIKEN BNL Research Center, Upton, New York 11973
³¹University of Science and Technology of China, Hefei
³²Seoul National University, Seoul
³³Shinshu University, Nagano
³⁴Sungkyunkwan University, Suwon
³⁵University of Sydney, Sydney NSW
³⁶Tata Institute of Fundamental Research, Bombay
³⁷Toho University, Funabashi
³⁸Tohoku Gakuin University, Tagajo
³⁹Tohoku University, Sendai
⁴⁰Department of Physics, University of Tokyo, Tokyo
⁴¹Tokyo Institute of Technology, Tokyo
⁴²Tokyo Metropolitan University, Tokyo
⁴³University of Tsukuba, Tsukuba
⁴⁴Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
⁴⁵Yonsei University, Seoul

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Phys. Rev. D 73, 051107(R) – Published 29 March, 2006

DOI: https://doi.org/10.1103/PhysRevD.73.051107

Abstract

The rare decay $B^{0} \to γ γ$ is searched for in $104 {fb}^{- 1}$ of data, corresponding to $111 \times 10^{6} B \bar{B}$ pairs, collected with the Belle detector at the KEKB asymmetric-energy $e^{+} e^{-}$ collider. No evidence for the signal is found, and an upper limit of $6.2 \times 10^{- 7}$ at 90% confidence level is set for the corresponding branching fraction.

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References (13)

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Physical Review D

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Search for the decay $B^{0} \to γ γ$

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Search for the decay B0→γγ

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Search for the decay $B^{0} \to γ γ$