First measurement of the quark-to-photon fragmentation function
ALEPH Collaboration
刊名ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS
1996
卷号69期号:3页码:#REF!
学科分类Physics
DOI10.1007/s002880050037
通讯作者Buskulic, D (reprint author), INST NATL PHYS NUCL & PHYS PARTICULES, CNRS, PHYS PARTICULES LAB, F-74019 ANNECY LE VIEUX, FRANCE.
文章类型Article
英文摘要Earlier measurements at LEP of isolated hard photons in hadronic Z decays, attributed to radiation from primary quark pairs, have been extended in the ALEPH experiment to include hard photon production inside hadron jets. Events are selected where all particles combine democratically to form hadron jets, one of which contains a photon with a fractional energy z greater than or equal to 0.7. After statistical subtraction of non-prompt photons, the quark-to-photon fragmentation function, D(z), is extracted directly from the measured 2-jet rate. By taking into account the perturbative contributions to D(z) obtained from an O(alpha alpha(s)) QCD calculation, the unknown non-perturbative component of D(z) is then determined at high z. Provided due account is taken of hadronization effects near z = 1, a good description of the other event topologies is then found.
类目[WOS]Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:A1996TR76700001
引用统计
被引频次:66[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/311005/227585
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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ALEPH Collaboration. First measurement of the quark-to-photon fragmentation function[J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS,1996,69(3):#REF!.
APA ALEPH Collaboration.(1996).First measurement of the quark-to-photon fragmentation function.ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS,69(3),#REF!.
MLA ALEPH Collaboration."First measurement of the quark-to-photon fragmentation function".ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS 69.3(1996):#REF!.
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