TESTING QCD - DIRECT PHOTONS IN E+ E- COLLISIONS

被引：71

作者：

KOLLER, K

WALSH, TF

ZERWAS, PM

机构：

[1] DESY,DEUTSCH ELEKTRONEN SYNCHROTRON,D-2000 HAMBURG 52,FED REP GER

[2] RHEIN WESTFAL TH AACHEN,INST THEORET PHYS,D-5100 AACHEN,FED REP GER

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1979年 / 2卷 / 03期

关键词：

D O I：

10.1007/BF01474661

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss QCD predictions for the production of direct photons in e+e- collisions, e+e-→ γ*→γ+ hadrons (C=+). A simple derivation of the QCD results for the structure functions is presented. These turn out to be exactly predicted by the theory, in contrast to hadron production where only the change with Q2 is predictable. We also take up the phenomenology of this process. A dramatic rise of the γ/π0 ratio with z=Eγ/EB(Eπ/EB) and with Q2 is predicted. © 1979 Springer-Verlag.

引用

页码：197 / 203

页数：7

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