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Precision Measurement of Charged Pion and Kaon Differential Cross Sections in e(+)e(-) Annihilation at root s=10.52 GeV
Belle Collaboration
2013
发表期刊PHYSICAL REVIEW LETTERS
卷号111期号:6
通讯作者Leitgab, M (reprint author), Univ Illinois, Urbana, IL 61801 USA.
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.
关键词E+E-ANNIHILATION HADRON-PRODUCTION UPSILON DECAYS ENERGY
学科领域Physics
DOI10.1103/PhysRevLett.111.062002
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000322786500006
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被引频次:31[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213579
专题实验物理中心
作者单位中国科学院高能物理研究所
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Belle Collaboration. Precision Measurement of Charged Pion and Kaon Differential Cross Sections in e(+)e(-) Annihilation at root s=10.52 GeV[J]. PHYSICAL REVIEW LETTERS,2013,111(6).
APA Belle Collaboration.(2013).Precision Measurement of Charged Pion and Kaon Differential Cross Sections in e(+)e(-) Annihilation at root s=10.52 GeV.PHYSICAL REVIEW LETTERS,111(6).
MLA Belle Collaboration."Precision Measurement of Charged Pion and Kaon Differential Cross Sections in e(+)e(-) Annihilation at root s=10.52 GeV".PHYSICAL REVIEW LETTERS 111.6(2013).
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