Probing New Physics from Top Quark FCNC Processes at LHC: A Mini Review

Abstract

Since the top quark FCNC processes are extremely supressed in the Standard Model (SM) but could be greatly enhanced in some new physics models, they could serve as a smoking gun for new physics hunting at the LHC. In this brief review we summarize the new physics predictions for various top quark FCNC processes at the LHC by focusing on two typical models: the minimal supersymmetric model (MSSM) and the topcolor-assisted technicolor (TC2) model. The conclusion is: (1) Both new physics models can greatly enhance the SM predictions by several orders; (2) The TC2 model allows for largest enhancement, and for each channel the maximal prediction is much larger than in the MSSM; (3) Compared with the $3\sigma$ sensitivity at the LHC, only a couple of channels are accessible for the MSSM while most channles are accesible for the TC2 model.

arXiv comment7 pages, Talk given at 4th International Conference on Flavor Physics (ICFP 2007), Beijing, China, 24-28 Sep 2007

References in corpus (1)

• Top-quark FCNC Productions at LHC in Topcolor-assisted Technicolor Model

Cited by in corpus (15)

• A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector
• R-parity violating effects in top quark FCNC productions at LHC
• Top quark FCNC decays and productions at LHC in littlest Higgs model with T-parity
• In search of an unbiased temperature estimator for statistically poor X-ray spectra
• Top quark three-body decays in the R-parity violating MSSM
• Search for anomalous couplings via single top quark production in association with a photon at LHC
• Flavor changing Z' couplings at the LHC
• Loop induced top quark FCNC through top quark and dark matter interactions
• Same-sign top pair plus $W$ production in flavor changing vector and scalar models
• Top quark decay t -> cb\bar{b} in topcolor-assisted technicolor models
• $\mu \to e\gamma$ in a supersymmetric radiative neutrino mass model
• Light axigluon and single top production at the LHC
• Single top or bottom production associated with a scalar in γp collision as a probe of topcolor-assisted technicolor
• Some implications of lepton flavor violating processes in a supersymmetric Type II seesaw model at TeV scale
• The flavor-changing bottom-strange quark production in the littlest Higgs model with T parity at the ILC