PROMPT PHOTON PAIR PRODUCTION IN ASSOCIATION WITH TOP ANTITOP PAIRS - AN IMPORTANT BACKGROUND TO INTERMEDIATE MASS HIGGS DETECTION

被引：14

作者：

BALLESTRERO, A ^{[1
]}

MAINA, E ^{[1
]}

机构：

[1] UNIV TURIN,DIPARTMENTO FIS TEOR,I-10125 TURIN,ITALY

来源：

PHYSICS LETTERS B | 1991年 / 268卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(91)91604-T

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The reaction pp --> tt-gamma-gammaBAR is studied for 80 less-than-or-equal-to M-gamma-gamma less-than-or-equal-to 140 GeV, as a possible background to the detection of an intermediate mass standard model Higgs in the rare l-nu-gamma-gamma final state. If the top is not too heavy the prompt photon production, integrated over a window of 6 GeV in M-gamma-gamma around the Higgs mass, can be larger than the production of photon pairs from Higgs decay. Standard isolation cuts can effectively dispose of this background for m(t) greater-than-or-equal-to 150 GeV. For m(t) approximately 100 GeV approximately the same number of background and signal events pass the cuts.

引用

页码：437 / 440

页数：4