Measurement of the e(+)e(-)-> J/psi c<overline>c</overline> cross section at <radical><radicand>s</radicand></radical>approximate to 10.6 GeV
- Authors
- Pakhlov, P.; Aihara, H.; Arinstein, K.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bhardwaj, V.; Bondar, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chang, M. -C.; Chang, P.; Chen, A.; Cheon, B. G.; 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. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Iwasaki, Y.; Joshi, N. J.; Kah, D. H.; Kaji, H.; Kawai, H.; Kawasai, T.; Kichimi, H.; Kim, H. O.; Kim, Y. I.; Kinoshita, K.; Ko, B. R.; Korpar, S.; Krizan, P.; Krokovny, P.; Kuzmin, A.; Kwon, Y. -J.; Kyeong, S. -H.; Lange, J. S.; Lee, M. J.; Lee, S. E.; 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. W.; Park, H.; Park, H. K.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Poluektov, A.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shiu, J. -G.; Shwartz, B.; Singh, J. B.; Sokolov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Tanaka, M.; Taylor, G. N.; 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. H.; Wang, P.; Watanabe, Y.; Wedd, R.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
- Issue Date
- 4월-2009
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.79, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 79
- Number
- 7
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120376
- DOI
- 10.1103/PhysRevD.79.071101
- ISSN
- 1550-7998
- 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.
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