QCD CORRECTIONS TO THE HZ-GAMMA COUPLING

被引：66

作者：

SPIRA, M ^{[1
]}

DJOUADI, A ^{[1
]}

ZERWAS, PM ^{[1
]}

机构：

[1] DESY,W-2000 HAMBURG 52,GERMANY

来源：

PHYSICS LETTERS B | 1992年 / 276卷 / 03期

关键词：

D O I：

10.1016/0370-2693(92)90331-W

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Z decay into Higgs plus photon Z --> H-gamma (for M(H) < M(Z)) and the rare Higgs decay mode H --> Z-gamma (for M(H) > m(Z)) are mediated by loops and can thus provide information on new particle spectra. To exploit this potential, the predictions of the standard model must be determined accurately. Besides W loops, the HZ-gamma-vertex is built up by heavy quark loops in the standard model. We present the QCD corrections to these processes which turn out to be of order alpha(s)/pi, and thus are well under control.

引用

页码：350 / 353

页数：4

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