Unparticle effects on top quark rare decays

ALIYEV T., ÇAKIR O., OZANSOY K. O.

PHYSICS LETTERS B, vol.670, pp.336-339, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 670
  • Publication Date: 2009
  • Doi Number: 10.1016/j.physletb.2008.10.037
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.336-339
  • Middle East Technical University Affiliated: Yes

Abstract

In this work we study the flavor changing neutral current (FCNC) decays of the top quark, t -> c gamma and t -> cg, in the framework of the unparticle physics. The Standard Model predictions for the branching ratios of these decays are about similar to 5 x 10(-14), and similar to 1 x 10(-12), respectively. The parameter space of lambda, Lambda, and d is obtained by taking into account the SM predictions and the results of the simulation performed by the ATLAS Collaboration for the branching ratios of t -> c gamma and t -> cg decays. (C) 2008 Elsevier B.V. All rights reserved.