The Constraint on FCNC Coupling of the Top Quark with a Gluon from ep Collisions

(2) IHEP; A.A. Ashimova (1); Moscow; Protvino; Russia; Russia); S.R. Slabospitsky (2) ((1) Moscow State University

arxiv: hep-ph/0604119 · v3 · submitted 2006-04-13 · ✦ hep-ph

The Constraint on FCNC Coupling of the Top Quark with a Gluon from ep Collisions

A.A. Ashimova (1) , S.R. Slabospitsky (2) ((1) Moscow State University , Moscow , Russia , (2) IHEP , Protvino , Russia) This is my paper

classification ✦ hep-ph

keywords constraintgluonquarkanomalouscollidercollisionsconstantcoupling

0 comments

read the original abstract

Using the constraint on the single top production cross-section obtained at the HERA collider, $\sigma(ep \to e t X)$, we evaluate an upper limit on oupling constant of the anomalous top quark interaction with a gluon via flavor-changing neutral current: $|\kappa_{tgq}/\Lambda| \le 0.4 {TeV}^{-1}$, BR$(t \to gq) < 13 % $

This paper has not been read by Pith yet.

The Constraint on FCNC Coupling of the Top Quark with a Gluon from ep Collisions

discussion (0)