Z BOSON PAIR PRODUCTION IN HIGH-ENERGY PHOTON PHOTON COLLISIONS AND THE HIGGS SIGNAL

被引：52

作者：

JIKIA, GV

机构：

[1] Institute for High Energy Physics, 142284 Protvino, Moscow Region

来源：

PHYSICS LETTERS B | 1993年 / 298卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(93)91734-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The complete standard model calculation for the reaction gammagamma--> ZZ has been done. The W boson loop contribution is found to be substantial. It leads to a large value of the transversely polarized Z(T)Z(T) pair production cross section of 200 fb at square-root s(gammagamma) = 500 GeV for unpolarized initial photons. The Z(T)Z(T) pair production would represent a severe irreducible background for the observation of the longitudinal Z(L)Z(L) pair production. So, the observation of the Higgs signal for M(H) greater-than-or-equal-to 500 GeV at the Photon Linear Collider seems to be a problem unless discrimination between transverse and longitudinal Z polarization is possible.

引用

页码：224 / 229

页数：6

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