1. Precision measurement of charged pion and kaon differential cross sections in e+e- annihilation at ?s=10.52 GeV
- Author
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Leitgab, M., Seidl, R., Grosse Perdekamp, M., Vossen, A., Adachi, I., Aihara, H., Asner, D.M., Aulchenko, V., Aushev, T., Bakich, A.M., Bhuyan, B., Bondar, A., Bozek, A., Bra?ko, 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., Dr�sal, 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., Kody�, P., Kouzes, R.T., Kri�an, 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., Petri?, M., Piilonen, L.E., R�hrken, 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., Stari?, 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., and Zhulanov, V.
- Subjects
Center-of-mass energies ,Precision measurement ,Charged pions ,Systematic uncertainties ,Measurements of ,Hadrons ,Differential cross section ,Belle detectors ,Bosons ,Cross-section measurement - 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 ?s=10.52 GeV. The measurements were performed with the Belle detector at the KEKB e+e- collider using a data sample containing 113�106 e+e -?qq? events, where q={u,d,s,c}. We present charge-integrated differential cross sections d?h�/dz for h�={?�,K�} as a function of the relative hadron energy z=2Eh/?s from 0.2 to 0.98. The combined statistical and systematic uncertainties for ?� (K�) are 4% (4%) at z?0.6 and 15% (24%) at z?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 Z0 resonance used by the experiments at LEP and SLC. � 2013 American Physical Society.
- Published
- 2013