Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-09-30
Annals Phys. 316 (2005) 529-539
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages, 12 figs, talk given at APPI2004, Iweta, Japan
Scientific paper
10.1016/j.aop.2004.11.003
We briefly review the studies on the top quark FCNC processes at a next-generation linear collider. Such processes, including various FCNC top quark rare decays and top-charm associated productions, are extremely suppressed in the standard model (SM) but could be significantly enhanced in some extensions. We compared the predictions from different typical new physics models: the SM, the minimal supersymmetric model (MSSM), the general two-higgs-doublet model (2HDM) and the topcolor-assisted technicolor (TC2) model. Our conclusion is: (1) While all the new physics models can enhance the rates by several orders relative to the SM predictions, the TC2 model predicts much larger rates than other models; (2) The optimal channel for probing the top quark FCNC is the top-charm associated production in \gamma-\gamma collision, which occurs at a much higher rate than e^+ e^- or e^- \gamma collision and can reach the detectable level for a large part of the parameter space.
No associations
LandOfFree
Probing new physics from top quark FCNC processes at linear colliders : a mini review does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Probing new physics from top quark FCNC processes at linear colliders : a mini review, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing new physics from top quark FCNC processes at linear colliders : a mini review will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-593372