Precision Measurement of Charged Pion and Kaon Differential Cross Sections in e+e- Annihilation at √s=10.52 GeV

被引：48

作者：

Leitgab, M. ^{[12
,47
]}

Seidl, R. ^{[47
]}

Perdekamp, M. Grosse ^{[12
,47
]}

Vossen, A. ^{[14
]}

Adachi, I. ^{[10
]}

Aihara, H. ^{[56
]}

Asner, D. M. ^{[43
]}

Aulchenko, V. ^{[3
,4
]}

Aushev, T. ^{[18
]}

Bakich, A. M. ^{[50
]}

Bhuyan, B. ^{[13
]}

Bondar, A. ^{[3
,4
]}

Bozek, A. ^{[39
]}

Bracko, M. ^{[19
,28
]}

Brodzicka, J. ^{[39
]}

Browder, T. E. ^{[9
]}

Chekelian, V. ^{[29
]}

Chen, A. ^{[36
]}

Chen, P. ^{[38
]}

Cheon, B. G. ^{[8
]}

Chilikin, K. ^{[18
]}

Cho, K. ^{[22
]}

Chobanova, V. ^{[29
]}

Choi, Y. ^{[49
]}

Cinabro, D. ^{[61
]}

Dalseno, J. ^{[29
,52
]}

Drasal, Z. ^{[5
]}

Dutta, D. ^{[13
]}

Eidelman, S. ^{[3
,4
]}

Epifanov, D. ^{[56
]}

Farhat, H. ^{[61
]}

Fast, J. E. ^{[43
]}

Gaur, V. ^{[51
]}

Gabyshev, N. ^{[3
,4
]}

Gillard, R. ^{[61
]}

Giordano, F. ^{[12
]}

Goh, Y. M. ^{[8
]}

Golob, B. ^{[19
,26
]}

Haba, J. ^{[10
]}

Hayasaka, K. ^{[34
]}

Hayashii, H. ^{[35
]}

Hoshi, Y. ^{[54
]}

Hou, W. -S. ^{[38
]}

Hsiung, Y. B. ^{[38
]}

Hyun, H. J. ^{[24
]}

Iijima, T. ^{[33
,34
]}

Ishikawa, A. ^{[55
]}

Itoh, R. ^{[10
]}

Jacobs, W. W. ^{[14
]}

Julius, T. ^{[30
]}

机构：

[1] Univ Basque Country UPV EHU, Bilbao 48080, Spain

[2] Univ Bonn, D-53115 Bonn, Germany

[3] Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia

[4] Novosibirsk State Univ, Novosibirsk 630090, Russia

[5] Charles Univ Prague, Fac Math & Phys, CR-12116 Prague, Czech Republic

[6] Univ Giessen, D-35392 Giessen, Germany

[7] Gifu Univ, Gifu 5011193, Japan

[8] Hanyang Univ, Seoul 133791, South Korea

[9] Univ Hawaii, Honolulu, HI 96822 USA

[10] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan

[11] Ikerbasque, Bilbao 48011, Spain

[12] Univ Illinois, Urbana, IL 61801 USA

[13] Indian Inst Technol Guwahati, Gauhati 781039, Assam, India

[14] Indiana Univ, Bloomington, IN 47408 USA

[15] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[16] Inst High Energy Phys, A-1050 Vienna, Austria

[17] Inst High Energy Phys, Protvino 142281, Russia

[18] Inst Theoret & Expt Phys, Moscow 117218, Russia

[19] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[20] Kanagawa Univ, Yokohama, Kanagawa 2218686, Japan

[21] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany

[22] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea

[23] Korea Univ, Seoul 136713, South Korea

[24] Kyungpook Natl Univ, Taegu 702701, South Korea

[25] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

[26] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia

[27] Luther Coll, Decorah, IA 52101 USA

[28] Univ Maribor, SLO-2000 Maribor, Slovenia

[29] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[30] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

[31] Moscow Phys Engn Inst, Moscow 115409, Russia

[32] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia

[33] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi 4648602, Japan

[34] Nagoya Univ, Kobayashi Maskawa Inst, Nagoya, Aichi 4648602, Japan

[35] Nara Womens Univ, Nara 6308506, Japan

[36] Natl Cent Univ, Chungli 32054, Taiwan

[37] Natl United Univ, Miaoli 36003, Taiwan

[38] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[39] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[40] Nippon Dent Univ, Niigata 9518580, Japan

[41] Niigata Univ, Niigata 9502181, Japan

[42] Osaka City Univ, Osaka 5588585, Japan

[43] Pacific NW Natl Lab, Richland, WA 99352 USA

[44] Peking Univ, Beijing 100871, Peoples R China

[45] Punjab Agr Univ, Ludhiana 141004, Punjab, India

[46] Tohoku Univ, Res Ctr Electron Photon Sci, Sendai, Miyagi 9808578, Japan

[47] RIKEN BNL Res Ctr, Upton, NY 11973 USA

[48] Seoul Natl Univ, Seoul 151742, South Korea

[49] Sungkyunkwan Univ, Suwon 440746, South Korea

[50] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 06期

关键词：

E+E-ANNIHILATION; HADRON-PRODUCTION;

D O I：

10.1103/PhysRevLett.111.062002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：7

共 27 条

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