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Study of intermediate two-body decays in over(B, ̄)0 → Σc (2455)0 over(p, ̄) π+

  • H. O. Kim
  • , H. Kichimi
  • , I. Adachi
  • , H. Aihara
  • , K. Arinstein
  • , V. Aulchenko
  • , T. Aushev
  • , A. M. Bakich
  • , V. Balagura
  • , I. Bedny
  • , U. Bitenc
  • , A. Bondar
  • , A. Bozek
  • , M. Bračko
  • , T. E. Browder
  • , P. Chang
  • , Y. Chao
  • , B. G. Cheon
  • , R. Chistov
  • , I. S. Cho
  • Y. Choi, J. Dalseno, M. Dash, S. Eidelman, D. Epifanov, N. Gabyshev, H. Ha, K. Hayasaka, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, D. H. Kah, J. H. Kang, N. Katayama, H. Kawai, T. Kawasaki, H. J. Kim, Y. I. Kim, Y. J. Kim, S. Korpar, P. Križan, P. Krokovny, R. Kumar, A. Kuzmin, Y. J. Kwon, J. S. Lee, M. J. Lee, T. Lesiak, S. W. Lin, D. Liventsev, A. Matyja, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, M. Nakao, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, C. W. Park, H. Park, H. K. Park, K. S. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, H. Sahoo, Y. Sakai, O. Schneider, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, J. G. Shiu, B. Shwartz, J. B. Singh, A. Somov, S. Stanič, M. Starič, T. Sumiyoshi, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Uehara, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, A. Vinokurova, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, E. Won, Y. Yamashita, M. Yamauchi, Z. P. Zhang, V. Zhilich, V. Zhulanov, T. Zivko, A. Zupanc, O. Zyukova
  • Kyungpook National 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
  • Jožef Stefan Institute
  • H. Niewodniczanski Institute of Nuclear Physics
  • University of Maribor
  • University of Hawai'i at Mānoa
  • National Taiwan University
  • Hanyang University
  • Yonsei University
  • Sungkyunkwan University
  • Virginia Polytechnic Institute and State University
  • Korea University
  • Nagoya University
  • The University of Osaka
  • Tohoku Gakuin University
  • Saga University
  • Chiba University
  • Niigata University
  • The Graduate University for Advanced Studies
  • University of Ljubljana
  • Panjab University
  • Seoul National University
  • Cracow University of Technology
  • Nara Women's University
  • National Central University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University
  • University of Melbourne
  • Institute for High Energy Physics
  • University of Cincinnati
  • University of Nova Gorica
  • Tokyo Metropolitan University
  • Osaka Metropolitan University
  • National United University Taiwan
  • CAS - Institute of High Energy Physics
  • Nippon Dental University
  • University of Science and Technology of China

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We present results of a detailed study of the three-body over(B, ̄)0 → Σc (2455)0 over(p, ̄) π+ decay. A significant enhancement of signal events is observed in the over(p, ̄) π+ invariant mass distribution near 1.5 GeV / c2 that is consistent with the presence of an intermediate baryonic resonance over(N, ̄)0, where over(N, ̄)0 is the over(N, ̄) (1440)0 P11 or over(N, ̄) (1535)0 S11 state, or an admixture of the two states. We measure the product B (over(B, ̄)0 → Σc (2455)0 over(N, ̄)0) × B (over(N, ̄)0 → over(p, ̄) π+) = (0.80 ± 0.15 (stat .) ± 0.14 (syst .) ± 0.21) × 10-4, where the last error is due to the uncertainty in B (Λc+ → p K- π+). The significance of the signal is 6.1 standard deviations. This analysis is based on a data sample of 357 fb-1, accumulated at the Υ{hooked} (4 S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider.

Original languageEnglish
Pages (from-to)287-293
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume669
Issue number5
DOIs
StatePublished - 27 Nov 2008

Keywords

  • B-meson
  • Charmed baryon
  • NP and S resonances

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