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Measurement of the ratio B (D0 → π+ π- π0) / B (D0 → K- π+ π0) and the time-integrated CP asymmetry in D0 → π+ π- π0

  • K. Arinstein
  • , I. Adachi
  • , H. Aihara
  • , V. Aulchenko
  • , T. Aushev
  • , T. Aziz
  • , S. Bahinipati
  • , A. M. Bakich
  • , V. Balagura
  • , E. Barberio
  • , A. Bay
  • , I. Bedny
  • , K. Belous
  • , V. Bhardwaj
  • , U. Bitenc
  • , S. Blyth
  • , A. Bondar
  • , A. Bozek
  • , M. Bračko
  • , T. E. Browder
  • Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. S. Cho, Y. Choi, S. Cole, J. Dalseno, M. Danilov, M. Dash, A. Drutskoy, S. Eidelman, D. Epifanov, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, K. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, Y. Hoshi, W. S. Hou, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, N. J. Joshi, D. H. Kah, H. Kaji, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. Kichimi, S. K. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Križan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, A. Kuzmin, Y. J. Kwon, J. S. Lange, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, A. Limosani, S. W. Lin, C. Liu, Y. Liu, D. Liventsev, F. Mandl, S. McOnie, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, T. Mori, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, H. Shibuya, J. G. Shiu, B. Shwartz, J. B. Singh, A. Sokolov, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, S. Y. Suzuki, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, T. Uglov, Y. Unno, S. Uno, Y. Usov, G. Varner, K. Vervink, S. Villa, A. Vinokurova, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, B. D. Yabsley, H. Yamamoto, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc, O. Zyukova
  • Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
  • High Energy Accelerator Research Organization (KEK)
  • University of Tokyo
  • Institute for Theoretical and Experimental Physics
  • ENAC-IIC-GEL
  • Tata Institute of Fundamental Research, Mumbai
  • University of Cincinnati
  • University of Sydney
  • University of Melbourne
  • Kurchatov Institute
  • Panjab University
  • Department of Biochemistry and Molecular and Structural Biology
  • National United University Taiwan
  • Institute for Nuclear Physics
  • University of Maribor
  • University of Hawaii
  • National Taiwan University
  • National Central University
  • Hanyang University
  • Yonsei University
  • Sungkyunkwan University
  • Virginia Polytechnic Institute and State University
  • University of Ljubljana
  • Korea University
  • Nagoya University
  • Nara Women's University
  • Tohoku Gakuin University
  • Saga University
  • Tokyo Institute of Technology
  • Kyungpook National University
  • Chiba University
  • Niigata University
  • Seoul National University
  • The Graduate University for Advanced Studies
  • Osaka University
  • Justus-Liebig-Universität Giessen
  • University of Science and Technology of China
  • Institut für Hochenergiephysik
  • Osaka City University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University
  • University of Nova Gorica
  • Tokyo Metropolitan University
  • Institute of High Energy Physics, Chinese Academy of Sciences
  • Tohoku University
  • Nippon Dental University

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25 Citations (Scopus)

Résumé

We report a high-statistics measurement of the relative branching fraction B (D0 → π+ π- π0) / B (D0 → K- π+ π0) using a 532 fb-1 data sample collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. The measured value of the relative branching fraction is B (D0 → π+ π- π0) / B (D0 → K- π+ π0) = (10.12 ± 0.04 (stat) ± 0.18 (syst)) × 10-2, which has an accuracy comparable to the world average. We also present a measurement of the time-integrated CP asymmetry in D0 → π+ π- π0 decay. The result, ACP = (0.43 ± 1.30) %, shows no significant CP violation.

langue originaleAnglais
Pages (de - à)102-110
Nombre de pages9
journalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume662
Numéro de publication2
Les DOIs
étatPublié - 17 avr. 2008
Modification externeOui

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