Measurement of the e+e-→J/ψcc¯ cross section at s≈10.6  GeV
Pakhlov, P.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bhardwaj, V.; Bondar, A.; Bračko, M.; Brodzicka, J.; Browder, T.; Chang, M.-C.; Chang, P.; Chen, A.; Cheon, B.; Chistov, R.; Choi, S.-K.; Choi, Y.; Danilov, M.; Dash, M.; Drutskoy, A.; Dungel, W.; Eidelman, S.; Epifanov, D.; Gabyshev, N.; Goldenzweig, P.; Golob, B.; Ha, H.; Han, B.-Y.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y.; Hyun, H.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Iwasaki, Y.; Joshi, N.; Kah, D.; Kaji, H.; Kawai, H.; Kawasai, T.; Kichimi, H.; Kim, H.; Kim, Y.; Kinoshita, K.; Ko, B.; Korpar, S.; Križan, P.; Krokovny, P.; Kuzmin, A.; Kwon, Y.-J.; Kyeong, S.-H.; Lange, J.; Lee, M.; Lee, S.; Lesiak, T.; Lin, S.-W.; Liu, Y.; Liventsev, D.; Louvot, R.; Mandl, F.; Matyja, A.; Mconie, S.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Nagasaka, Y.; Nakao, M.; Nakazawa, H.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ozaki, H.; Pakhlova, G.; Palka, H.; Park, C.; Park, H.; Park, H.; Park, K.; Pestotnik, R.; Piilonen, L.; Poluektov, A.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Senyo, K.; Sevior, M.; Shapkin, M.; Shen, C.; Shiu, J.-G.; Shwartz, B.; Singh, J.; Sokolov, A.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Tanaka, M.; Taylor, G.; Teramoto, Y.; Tikhomirov, I.; Trabelsi, K.; Tsuboyama, T.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Varner, G.; Vervink, K.; Vinokurova, A.; Wang, C.; Wang, P.; Watanabe, Y.; Wedd, R.; Won, E.; Yabsley, B.; Yamashita, Y.; Zhang, C.; Zhang, Z.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.; The Belle Collaboration
2009

Abstract

We present a new measurement of the e(+)e(-)-> J/psi c(c)over bar cross section where the c(c)over bar pair can fragment either into charmed hadrons or a charmonium state. In the former case the J/psi and a charmed hadron are reconstructed, while the latter process is measured using the recoil mass technique, which allows the identification of two-body final states without reconstruction of one of the charmonia. The measured e(+)e(-)-> J/psi c(c)over bar cross section is (0.74 +/- 0.08(-0.08)(+0.09)) pb, and the e(+)e(-)-> J/psi Xnon-c(c)over bar cross section is (0.43 +/- 0.09 +/- 0.09) pb. We note that the measured cross sections are obtained from a data sample with the multiplicity of charged tracks in the event larger than 4; corrections for the effect of this requirement are not performed as this cannot be done in a model-independent way. The analysis is based on a data sample with an integrated luminosity of 673 fb(-1) recorded near the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider.

Details

Title Measurement of the e+e-→J/ψcc¯ cross section at s≈10.6  GeV
Author(s) Pakhlov, P. ; Aihara, H. ; Arinstein, K. ; Aushev, T. ; Bakich, A. ; Balagura, V. ; Barberio, E. ; Bay, A. ; Belous, K. ; Bhardwaj, V. ; Bondar, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T. ; Chang, M.-C. ; Chang, P. ; Chen, A. ; Cheon, B. ; Chistov, R. ; Choi, S.-K. ; Choi, Y. ; Danilov, M. ; Dash, M. ; Drutskoy, A. ; Dungel, W. ; Eidelman, S. ; Epifanov, D. ; Gabyshev, N. ; Goldenzweig, P. ; Golob, B. ; Ha, H. ; Han, B.-Y. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Horii, Y. ; Hoshi, Y. ; Hou, W.-S. ; Hsiung, Y. ; Hyun, H. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Ishino, H. ; Iwasaki, Y. ; Joshi, N. ; Kah, D. ; Kaji, H. ; Kawai, H. ; Kawasai, T. ; Kichimi, H. ; Kim, H. ; Kim, Y. ; Kinoshita, K. ; Ko, B. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kuzmin, A. ; Kwon, Y.-J. ; Kyeong, S.-H. ; Lange, J. ; Lee, M. ; Lee, S. ; Lesiak, T. ; Lin, S.-W. ; Liu, Y. ; Liventsev, D. ; Louvot, R. ; Mandl, F. ; Matyja, A. ; Mconie, S. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Nagasaka, Y. ; Nakao, M. ; Nakazawa, H. ; Nishimura, K. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Ozaki, H. ; Pakhlova, G. ; Palka, H. ; Park, C. ; Park, H. ; Park, H. ; Park, K. ; Pestotnik, R. ; Piilonen, L. ; Poluektov, A. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Schwanda, C. ; Senyo, K. ; Sevior, M. ; Shapkin, M. ; Shen, C. ; Shiu, J.-G. ; Shwartz, B. ; Singh, J. ; Sokolov, A. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Tanaka, M. ; Taylor, G. ; Teramoto, Y. ; Tikhomirov, I. ; Trabelsi, K. ; Tsuboyama, T. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Usov, Y. ; Varner, G. ; Vervink, K. ; Vinokurova, A. ; Wang, C. ; Wang, P. ; Watanabe, Y. ; Wedd, R. ; Won, E. ; Yabsley, B. ; Yamashita, Y. ; Zhang, C. ; Zhang, Z. ; Zhilich, V. ; Zhulanov, V. ; Zivko, T. ; Zupanc, A. ; Zyukova, O. ; The Belle Collaboration
Published in Physical Review D
Volume 79
Issue 7
Pages 071101(R)
Date 2009
ISSN 1550-2368
Keywords
DOI https://doi.org/10.1103/PhysRevD.79.071101
Other identifier(s) View record in Web of Science
Laboratories LPHE
Record Appears in Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date 2010-11-05

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