Searching for an anomalous (t)over-bar-qγ coupling via single top quark production at a γγ collider

被引：20

作者：

Abraham, KJ

Whisnant, K

Young, BL

机构：

[1] Univ Natal, Dept Phys, ZA-3200 Pietermartizburg, South Africa

[2] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

来源：

PHYSICS LETTERS B | 1998年 / 419卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(97)01463-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the potential of a high-energy gamma gamma collider to detect an anomalous <(t)over bar q gamma> coupling from observation of the reaction gamma gamma --> <t(q)over bar>, <(t)over bar q>, where q = c or u. We find that with b-tagging and suitable kinematic cuts this process should be observable if the anomalous coupling kappa/Lambda is no less than about 0.05/TeV, where Lambda is the scale of new physics associated with the anomalous interaction. This improves upon the bound possible from observation of top decays at the Tevatron. (C) 1998 Published by Elsevier Science B.V.

引用

页码：381 / 386

页数：6

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