NOVEL SIGNATURES OF HEAVY QUARKS AT THE CERN S(P)BAR-PS AND FERMILAB TEVATRON COLLIDERS

被引：5

作者：

AGRAWAL, P ^{[1
]}

HOU, WS ^{[1
]}

机构：

[1] PAUL SCHERRER INST,CH-5232 VILLIGEN,SWITZERLAND

来源：

PHYSICAL REVIEW D | 1992年 / 46卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.46.1022

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

New heavy quarks with m(Q) < M(Z), if they exist, are produced rather copiously at existing hadronic colliders. If they predominantly decay via unusual modes, thus giving rise to novel signatures, they could have so far evaded detection. The fourth-generation b' quark, with its diverse decay modes, is studied as an illustration. We focus on the signatures ee + 2j, p(T)BAR + 2j, and gamma + 3j, while more intriguing signatures are also discussed. Exotic quarks, such as vectorlike quarks, possess signatures that form a subset of these. However, the possible existence of the gamma +jets mode is unique to b'. Such quarks, if they exist in the appropriate mass range, could constitute a source of large background to the signals for supersymmetric particles, the Higgs boson, techniparticles, etc. We find that existing hadronic colliders should be able to discover these new heavy quarks if they fall inside the M(Z)/2 less than or similar m(Q) less than or similar M(Z) range, and m(Q) < M(H)0.

引用

页码：1022 / 1034

页数：13

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