Accès ouvert déclaré 2004 article

Inclusive Measurement of the Photon Energy Spectrum in b→sγ Decays

P. Koppenburg, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, V. Aulchenko, T. Aushev, A. M. Bakich, C. Schwanda, A. J. Schwartz, S. Semenov, K. Senyo, R. Seuster, M. E. Sevior, H. Shibuya, N. Soni, R. Stamen, U. Bitenc, S. Fratina, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, O. Tajima, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, T. Tomura, N. Gabyshev, I. Bizjak, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, S. Uno, Y. Ushiroda, G. Varner, A. Garmash, K. E. Varvell, A. Bondar, C. C. Wang, M. Watanabe, B. D. Yabsley, Y. Yamada, A. Yamaguchi, Y. Yamashita, M. Yamauchi, T. Gershon, H. Yanai, Heyoung Yang, A. Bozek, J. Ying, Y. Yusa, C. C. Zhang, Z. P. Zhang, T. Ziegler, D. Žontar, M. Bracˇko, G. Gokhroo, T. E. Browder, P. Chang, Y. Chao, K. -F. Chen, B. G. Cheon, Y. K. Choi, A. Chuvikov, S. Cole, M. Danilov, M. Dash, B. Golob, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, F. Fang, J. Haba, H. Hayashii, M. Hazumi, T. Higuchi, S. Ogawa, L. Hinz, T. Hokuue, Y. Hoshi, W. -S. Hou, Y. B. Hsiung, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, H. Iwasaki, T. Ohshima, M. Iwasaki, J. S. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, J. H. Kim, S. K. Kim, T. Okabe, T. H. Kim, S. Korpar, P. Krizˇan, P. Krokovny, S. Kumar, A. Kuzmin, Y. -J. Kwon, J. S. Lange, G. Leder, S. E. Lee, S. Okuno, T. Lesiak, J. Li, A. Limosani, S. -W. Lin, J. MacNaughton, G. Majumder, F. Mandl, T. Matsumoto, Y. Mikami, W. Mitaroff, S. L. Olsen, K. Miyabayashi, H. Miyake, H. Miyata, D. Mohapatra, G. R. Moloney, T. Mori, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, W. Ostrowicz, M. Nakao, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, T. Nozaki, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, Y. Ban, H. Park, N. Parslow, L. S. Peak, L. E. Piilonen, F. J. Ronga, M. Rozanska, H. Sagawa, S. Saitoh, Y. Sakai, T. R. Sarangi, A. Bay, O. Schneider

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14Pays d’affiliation déclarés

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Le résumé fourni par la source

We report a fully inclusive measurement of the flavor changing neutral current decay b !s in the energy range 1:8 GeV E 2:8 GeV, covering 95% of the total spectrum.Using 140 fb ÿ1 , we obtain Bb !s 3:55 0:32 0:300:11 ÿ0:31ÿ0:07 10 ÿ4 , where the errors are statistical, systematic, and from theory corrections.We also measure the first and second moments of the photon energy spectrum above 1:8 GeV and obtain hE i 2:292 0:026 0:034 GeV and hE 2 i ÿ hE i 2 0:0305 0:0074 0:0063 GeV 2 , where the errors are statistical and systematic.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Le contrôle bibliographique ouvert

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Les institutions déclarées

High Energy Accelerator Research Organization Tohoku Gakuin University The University of Tokyo Nagoya University Hospital Nagoya University University of Tsukuba Tsukuba University of Technology Budker Institute of Nuclear Physics Institute for Theoretical and Experimental Physics The University of Sydney UNSW Sydney Institute of High Energy Physics Institute of High Energy Physics University of Cincinnati University of Hawaii System The University of Melbourne Victoria University Toho University Panjab University Jožef Stefan Institute Tokyo Metropolitan University Yokkaichi University Tohoku University Niigata University National Taiwan University National Taipei University Princeton University National United University Virginia Tech Nihon University Nippon Dental University Seoul National University New Generation University College Institute of Nuclear Physics, Polish Academy of Sciences Peking University University of Science and Technology of China Hefei University of Technology Tata Institute of Fundamental Research Sungkyunkwan University University of Ljubljana Nara Women's University École Polytechnique Fédérale de Lausanne University of Seoul Yonsei University Korea University Chiba University University of Maribor Goethe University Frankfurt University Hospital Frankfurt RIKEN BNL Research Center Frankfurt University of Applied Sciences Kanagawa University Osaka University of Economics Osaka Health Science University Tokyo Institute of Technology Hiroshima Institute of Technology Osaka City University Osaka City University Hospital Tokyo University of Agriculture and Technology Kyungpook National University Utkal University

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Les sujets associés

Particle physics theoretical and experimental studiesParticle Detector Development and PerformanceHigh-Energy Particle Collisions Research

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