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Measurements of time-dependent CP violation in B0 → (2S)K0 S decays

  • H. Sahoo
  • , T. E. Browder
  • , K. Trabelsi
  • , I. Adachi
  • , H. Aihara
  • , K. Arinstein
  • , T. Aushev
  • , S. Bahinipati
  • , A. M. Bakich
  • , V. Balagura
  • , E. Barberio
  • , A. Bay
  • , I. Bedny
  • , K. Belous
  • , U. Bitenc
  • , A. Bondar
  • , A. Bozek
  • , M. Bracko
  • , M. C. Chang
  • , Y. Chao
  • A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, I. S. Cho, Y. Choi, J. Dalseno, M. Dash, A. Drutskoy, S. Eidelman, B. Golob, H. Ha, J. Haba, K. Hara, T. Hara, K. Hayasaka, H. Hayashii, M. Hazumi, D. Heffernan, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, N. J. Joshi, D. H. Kah, J. H. Kang, P. Kapusta, N. Katayama, H. Kichimi, H. J. Kim, Y. J. Kim, K. Kinoshita, S. Korpar, Y. Kozakai, P. Krizan, P. Krokovny, R. Kumar, C. C. Kuo, Y. Kuroki, Y. J. Kwon, J. S. Lee, M. J. Lee, S. E. Lee, T. Lesiak, J. Li, A. Limosani, D. Liventsev, F. Mandl, A. Matyja, S. McOnie, T. Medvedeva, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, Y. Miyazaki, R. Mizuk, G. R. Moloney, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, P. Pakhlov, G. Pakhlova, H. Palka, C. W. Park, H. Park, L. S. Peak, R. Pestotnik, L. E. Piilonen, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, H. Shibuya, J. G. Shiu, B. Shwartz, A. Somov, S. Stanic, M. Staric, K. Sumisawa, T. Sumiyoshi, F. Takasaki, M. Tanaka, G. N. Taylor, Y. Teramoto, I. Tikhomirov, S. Uehara, K. Ueno, Y. Unno, S. Uno, P. Urquijo, Y. Usov, G. Varner, K. E. Varvell, K. Vervink, S. Villa, C. H. Wang, P. Wang, X. L. Wang, Y. Watanabe, R. Wedd, E. Won, H. Yamamoto, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhulanov, A. Zupanc
  • University of Hawai'i at Mānoa
  • 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
  • University of Cincinnati
  • The University of Sydney
  • University of Melbourne
  • Institute for High Energy Physics
  • Jožef Stefan Institute
  • H. Niewodniczanski Institute of Nuclear Physics
  • University of Maribor
  • Fu Jen Catholic University
  • 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
  • The University of Osaka
  • Nara Women's University
  • Tohoku Gakuin University
  • Kyungpook National University
  • Saga University
  • Tokyo Institute of Technology
  • Tata Institute of Fundamental Research
  • The Graduate University for Advanced Studies
  • Panjab University
  • Seoul National University
  • Austrian Academy of Sciences
  • Niigata University
  • Osaka Metropolitan University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University
  • CAS - Institute of High Energy Physics
  • University of Nova Gorica
  • Tokyo Metropolitan University
  • National United University Taiwan
  • Tohoku University
  • Nippon Dental University
  • University of Science and Technology of China

Research output: Contribution to conferencePaperpeer-review

Abstract

We report improved measurements of time-dependent CP violation parameters for B0 (B0) → (2S)K0S . This analysis is based on a data sample of 657×106 BB pairs collected at the γ(4S) res- onance with the Belle detector at the KEKB energy-asymmetric e+e- collider. We fully reconstruct one neutral B meson in the (2S)K0 S CP-eigenstate decay channel, and the flavor of the accompa- nying B meson is identified to be either B0 or B0 from its decay products. CP violation parameters are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays: S (2S)K0 S = +0.72 ± 0.09(stat) ± 0.03(syst), A (2S)K0S = +0.04 ± 0.07(stat) ± 0.05(syst). These results are in agreement with results from measurements of B0 → J/ ψ K0.

Original languageEnglish
StatePublished - 2007
Event23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007 - Daegu, Korea, Republic of
Duration: 13 Aug 200718 Aug 2007

Conference

Conference23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007
Country/TerritoryKorea, Republic of
CityDaegu
Period13/08/0718/08/07

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