Precision measurement of charged pion and kaon differential cross sections in e+ e- annihilation at sqrt[s]=10.52  GeV.

Journal Article (Journal Article)

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 sqrt[s]=10.52  GeV. The measurements were performed with the Belle detector at the KEKB e+ e- collider using a data sample containing 113×10(6) e+ e- → qq events, where q={u,d,s,c}. We present charge-integrated differential cross sections dσ(h±)/dz for h±={π±,K±} as a function of the relative hadron energy z=2E(h)/sqrt[s] from 0.2 to 0.98. The combined statistical and systematic uncertainties for π± (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.

Full Text

Duke Authors

Cited Authors

  • Leitgab, M; Seidl, R; Grosse Perdekamp, M; Vossen, A; Adachi, I; Aihara, H; Asner, DM; Aulchenko, V; Aushev, T; Bakich, AM; Bhuyan, B; Bondar, A; Bozek, A; Bračko, M; Brodzicka, J; Browder, TE; Chekelian, V; Chen, A; Chen, P; Cheon, BG; Chilikin, K; Cho, K; Chobanova, V; Choi, Y; Cinabro, D; Dalseno, J; Drásal, Z; Dutta, D; Eidelman, S; Epifanov, D; Farhat, H; Fast, JE; Gaur, V; Gabyshev, N; Gillard, R; Giordano, F; Goh, YM; Golob, B; Haba, J; Hayasaka, K; Hayashii, H; Hoshi, Y; Hou, W-S; Hsiung, YB; Hyun, HJ; Iijima, T; Ishikawa, A; Itoh, R; Jacobs, WW; Julius, T; Kang, JH; Kapusta, P; Kato, E; Kawasaki, T; Kim, HJ; Kim, HO; Kim, JB; Kim, JH; Kim, MJ; Klucar, J; Ko, BR; Kodyš, P; Kouzes, RT; Križan, P; Krokovny, P; Kumar, R; Kumita, T; Kwon, Y-J; Lange, JS; Lee, S-H; Li, Y; Liu, ZQ; 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, NK; Nitoh, O; Ogawa, A; Ogawa, S; Ohshima, T; Okuno, S; Olsen, SL; Oswald, C; Pakhlov, P; Park, H; Park, HK; Pedlar, TK; Pestotnik, R; Petrič, M; Piilonen, LE; Röhrken, M; Sahoo, H; Sakai, Y; Sandilya, S; Santelj, L; Sanuki, T; Sato, Y; Schneider, O; Schnell, G; Schwanda, C; Senyo, K; Seon, O; Sevior, ME; Shapkin, M; Shen, CP; Shibata, T-A; Shiu, J-G; Shwartz, B; Sibidanov, A; Simon, F; Smerkol, P; Sohn, Y-S; Sokolov, A; Solovieva, E; Starič, 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, MN; Wang, CH; Wang, J; Wang, M-Z; Wang, P; Watanabe, M; Watanabe, Y; Williams, KM; Won, E; Yamashita, Y; Zhilich, V; Zhulanov, V; Belle Collaboration,

Published Date

  • August 6, 2013

Published In

Volume / Issue

  • 111 / 6

Start / End Page

  • 062002 -

PubMed ID

  • 23971562

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.111.062002

Language

  • eng