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Charm hadrons from fragmentation and B decays in e+e- annihilation at s=10.6GeV

  • R. Seuster
  • , K. Abe
  • , H. Aihara
  • , Y. Asano
  • , T. Aushev
  • , A. M. Bakich
  • , M. Barbero
  • , I. Bedny
  • , U. Bitenc
  • , I. Bizjak
  • , A. Bozek
  • , M. Bračko
  • , J. Brodzicka
  • , A. Chen
  • , B. G. Cheon
  • , Y. Choi
  • , A. Chuvikov
  • , S. Cole
  • , J. Dalseno
  • , M. Danilov
  • M. Dash, L. Y. Dong, J. Dragic, A. Drutskoy, S. Eidelman, F. Fang, T. Gershon, A. Go, G. Gokhroo, B. Golob, A. Gorišek, K. Hayasaka, M. Hazumi, Y. Hoshi, S. Hou, W. S. Hou, T. Iijima, K. Ikado, R. Itoh, Y. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. M. Kim, P. Križan, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, T. Lesiak, J. Li, S. W. Lin, F. Mandl, W. Mitaroff, H. Miyake, Y. Miyazaki, R. Mizuk, T. Nagamine, Y. Nagasaka, E. Nakano, M. Nakao, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, R. Pestotnik, L. E. Piilonen, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, J. Schümann, C. Schwanda, M. E. Sevior, H. Shibuya, V. Sidorov, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, S. Y. Suzuki, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, X. C. Tian, S. Uehara, T. Uglov, K. Ueno, S. Uno, P. Urquijo, G. Varner, C. C. Wang, C. H. Wang, M. Z. Wang, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, J. Ying, Y. Yusa, L. M. Zhang, Z. P. Zhang, V. Zhilich
  • University of Hawai'i at Mānoa
  • Tohoku Gakuin University
  • The University of Tokyo
  • University of Tsukuba
  • Alikhanov Institute for Theoretical and Experimental Physics
  • The University of Sydney
  • RAS - Budker Institute of Nuclear Physics
  • Jožef Stefan Institute
  • H. Niewodniczanski Institute of Nuclear Physics
  • High Energy Accelerator Research Organization, Tsukuba
  • University of Maribor
  • National Central University
  • Chonnam National University
  • Sungkyunkwan University
  • Princeton University
  • University of Melbourne
  • Virginia Polytechnic Institute and State University
  • CAS - Institute of High Energy Physics
  • University of Cincinnati
  • Tata Institute of Fundamental Research
  • University of Ljubljana
  • Nagoya University
  • National Taiwan University
  • Yonsei University
  • Korea University
  • Chiba University
  • Niigata University
  • Tokyo Institute of Technology
  • Goethe University Frankfurt
  • University of Science and Technology of China
  • Austrian Academy of Sciences
  • The University of Osaka
  • Tohoku University
  • Hiroshima Institute of Technology
  • Osaka Metropolitan University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University
  • Kyungpook National University
  • Swiss Federal Institute of Technology Lausanne
  • Panjab University
  • University of Nova Gorica
  • Peking University
  • National United University Taiwan
  • Nippon Dental University

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

We present an analysis of charm quark fragmentation at 10.6 GeV, based on a data sample of 103fb-1 collected by the Belle detector at the KEKB accelerator. We consider fragmentation into the main charmed hadron ground states, namely D0,D+,Ds+ and Λc+, as well as the excited states D*0 and D*+. The fragmentation functions are important to measure as they describe processes at a low energy scale, where calculations in perturbation theory lead to large uncertainties. Fragmentation functions can also be used as input distributions for Monte Carlo generators. Additionally, we determine the average number of these charmed hadrons produced per B decay at the Υ(4S) resonance and measure the distribution of their production angle in e+e- annihilation events and in B decays.

Original languageEnglish
Article number032002
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume73
Issue number3
DOIs
StatePublished - 2006

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