Skip to main navigation Skip to search Skip to main content

Measurement of B0→π+π-π+π- decays and search for B0→ρ0ρ0

  • C. C. Chiang
  • , I. Adachi
  • , H. Aihara
  • , K. Arinstein
  • , V. Aulchenko
  • , T. Aushev
  • , A. M. Bakich
  • , I. Bedny
  • , V. Bhardwaj
  • , U. Bitenc
  • , A. Bozek
  • , M. Bračko
  • , T. E. Browder
  • , P. Chang
  • , Y. Chao
  • , A. Chen
  • , B. G. Cheon
  • , R. Chistov
  • , I. S. Cho
  • , S. K. Choi
  • Y. Choi, J. Dalseno, M. Dash, W. Dungel, S. Eidelman, N. Gabyshev, P. Goldenzweig, B. Golob, H. Ha, J. Haba, T. Hara, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, H. Kawai, T. Kawasaki, H. Kichimi, H. J. Kim, H. O. Kim, S. K. Kim, Y. I. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, P. Krizan, P. Krokovny, R. Kumar, Y. J. Kwon, S. H. Kyeong, J. S. Lange, J. S. Lee, S. E. Lee, J. Li, A. Limosani, S. W. Lin, C. Liu, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, H. Miyata, R. Mizuk, T. Mori, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, H. K. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, H. Sahoo, Y. Sakai, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, J. G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, K. Trabelsi, S. Uehara, T. Uglov, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, A. Vinokurova, C. C. Wang, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, R. Wedd, J. Wicht, E. Won, B. D. Yabsley, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova
  • National Taiwan University
  • High Energy Accelerator Research Organization, Tsukuba
  • The University of Tokyo
  • RAS - Budker Institute of Nuclear Physics
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Swiss Federal Institute of Technology Lausanne
  • The University of Sydney
  • Panjab University
  • Jožef Stefan Institute
  • H. Niewodniczanski Institute of Nuclear Physics
  • University of Maribor
  • University of Hawai'i at Mānoa
  • National Central University
  • Hanyang University
  • Yonsei University
  • Gyeongsang National University
  • Sungkyunkwan University
  • Virginia Polytechnic Institute and State University
  • Austrian Academy of Sciences
  • University of Cincinnati
  • University of Ljubljana
  • Korea University
  • The University of Osaka
  • Nagoya University
  • Tohoku Gakuin University
  • Kyungpook National University
  • Saga University
  • Institute of Science Tokyo
  • Okayama University
  • Chiba University
  • Niigata University
  • Seoul National University
  • The Graduate University for Advanced Studies
  • Justus Liebig University Giessen
  • University of Melbourne
  • University of Science and Technology of China
  • Osaka Metropolitan University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University
  • CAS - Institute of High Energy Physics
  • Institute for High Energy Physics
  • University of Nova Gorica
  • Tokyo Metropolitan University
  • National United University Taiwan
  • Nippon Dental University

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

We report on a search for the decay B0→ρ0ρ0 and other charmless modes with a π+π-π+π- final state, including B0→ρ0π+π-, nonresonant B0→4π±, B0→ρ0f0(980), B0→f0(980)f0(980) and B0→f0(980)π+π-. These results are obtained from a data sample containing 657×106 BB̄ pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We set an upper limit on B(B0→ρ0ρ0) of 1.0×10-6 at the 90% confidence level (C.L.). From our B0→ρ0ρ0 measurement and an isospin analysis, we determine the Cabibbo-Kobayashi-Maskawa phase 2 to be 91.7±14.9 degrees. We find excesses in B0→ρ0π+π- and nonresonant B0→4π± with 1.3σ and 2.5σ significance, respectively. The corresponding branching fractions are less than 12.0×10-6 and 19.3×10-6 at the 90% C.L. In addition, we set 90% C.L. upper limits as follows: B(B0→ρ0f0(980))<0.3×10-6, B(B0→f0(980)f0(980))<0.1×10-6, and B(B0→f0(980)π+π-) <3.8×10-6.

Original languageEnglish
Article number111102
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume78
Issue number11
DOIs
StatePublished - 1 Dec 2008

Fingerprint

Dive into the research topics of 'Measurement of B0→π+π-π+π- decays and search for B0→ρ0ρ0'. Together they form a unique fingerprint.

Cite this