2008/12/31 by Jure Drobnak, Svjetlana Fajfer, Jernej F. Kamenik · 1 citation
Physics and Astronomy · #hep-ex #hep-ph
paper · pdf · doi:10.1088/1126-6708/2009/03/077
published as JHEP 0903:077,2009 · 12 pages, 9 figures
arxiv created 2009/02/24 · arxiv updated 2009/12/01
Among other roles the LHC will play a role of the top "factory" and it will give us unique possibility to study new physics signatures in different ways. Many scenarios of new physics allow top quark FCNC decays. Using most general model independent Lagrangian of new physics we investigate possible experimental signals of new physics in t --> c(u) l+ l- FCNC top decays. We find that measurement of two possible asymmetries might give very important and interesting information of NP. It is particularly interesting to use them to discriminate among variety on NP scenarios. We consider also contributions of the interference between scalar and vector mediators of the FCNC decays.