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Precision Measurement of Charged Pion and Kaon Differential Cross Sections in e(+)e(-) Annihilation at root s=10.52 GeV
- Authors
- Leitgab, M.; Seidl, R.; Perdekamp, M. Grosse; Vossen, A.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Bhuyan, B.; Bondar, A.; Bozek, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chekelian, V.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Cho, K.; Chobanova, V.; Choi, Y.; Cinabro, D.; Dalseno, J.; Drasal, Z.; Dutta, D.; Eidelman, S.; Epifanov, D.; Farhat, H.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Gillard, R.; Giordano, F.; Goh, Y. M.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Jacobs, W. W.; Julius, T.; Kang, J. H.; Kapusta, P.; Kato, E.; Kawasaki, T.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, M. J.; Klucar, J.; Ko, B. R.; Kodys, P.; Kouzes, R. T.; Krizan, P.; Krokovny, P.; Kumar, R.; Kumita, T.; Kwon, Y. -J.; Lange, J. S.; Lee, S. -H.; Li, Y.; Liu, Z. Q.; Liventsev, D.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Moll, A.; Muramatsu, N.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nayak, M.; Nedelkovska, E.; Ng, C.; Nisar, N. K.; Nitoh, O.; Ogawa, A.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Oswald, C.; Pakhlov, P.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petric, M.; Piilonen, L. E.; Roehrken, M.; Sahoo, H.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Sato, Y.; Schneider, O.; Schnell, G.; Schwanda, C.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y. -S.; Sokolov, A.; Solovieva, E.; Staric, M.; Sumihama, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Tsuboyama, T.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Van Hulse, C.; Varner, G.; Vorobyev, V.; Wagner, M. N.; Wang, C. H.; Wang, J.; Wang, M. -Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamashita, Y.; Zhilich, V.; Zhulanov, V.
- Issue Date
- 6-8월-2013
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.111, no.6
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 111
- Number
- 6
- ISSN
- 0031-9007
- Abstract
- Measurements of inclusive differential cross sections for charged pion and kaon production in e(+)e(-) annihilation have been carried out at a center-of-mass energy of root s = 10.52 GeV. The measurements were performed with the Belle detector at the KEKB e(+)e(-) collider using a data sample containing 113 X 10(6) e(+)e(-) -> q (q) over bar events, where q = {u, d, s, c}. We present charge-integrated differential cross sections d sigma(h+)/dz for h(+/-) = {pi(+/-), K-+/-} as a function of the relative hadron energy z = 2E(h)/root s from 0.2 to 0.98. The combined statistical and systematic uncertainties for pi(+/-) (K-+/-) are 4% (4%) at z similar to 0.6 and 15% (24%) at z similar to 0.9. The cross sections are the first measurements of the z dependence of pion and kaon production for z > 0.7 as well as the first precision cross section measurements at a center-of-mass energy far below the Z(0) resonance used by the experiments at LEP and SLC.
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