THRESHOLD PRODUCTION OF HEAVY TOP QUARKS - QCD AND THE HIGGS BOSON

被引：206

作者：

STRASSLER, MJ

PESKIN, ME

机构：

[1] Stanford Linear Accelerator Center, Stanford University, Stanford

来源：

PHYSICAL REVIEW D | 1991年 / 43卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.43.1500

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the threshold cross section for e+e- --> ttBAR to leading-logarithmic order in QCD, using a nonrelativistic approximation suggested by Fadin and Khoze. We study the mass range 100 less-than-or-equal-to m(t) less-than-or-equal-to 250 GeV, and show that the cross section is an excellent measure of alpha-s for the lower portion of the mass range, while for a heavier top quark it is sensitive to the mass and couplings of the Higgs boson. We argue that a precise determination of m(t) and a measurement of GAMMA-t are possible. We also show that nonperturbative effects are small, confirming that the ttBAR threshold is a detailed perturbative test of the standard model.

引用

页码：1500 / 1514

页数：15

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