Probing Topcolor-Assisted Technicolor from Top-Charm Associated Production at LHC

Details Probing Topcolor-Assisted Technicolor from Top-Charm Associated Production at LHC Probing Topcolor-Assisted Technicolor from Top-Charm Associated Production at LHC

2002-12-08

arxiv.org/abs/hep-ph/0212114v3

Phys.Rev.D67:071701,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version to appear in PRD (Rapid Communication)

Scientific paper

10.1103/PhysRevD.67.071701

We propose to probe the topcolor-assisted technicolor (TC2) model from the top-charm associated productions at the LHC, which are highly suppressed in the Standard Model. Due to the flavor-changing couplings of the top quark with the scalars (top-pions and top-Higgs) in TC2 model, the top-charm associated productions can occur via both the s-channel and t-channel parton processes by exchanging a scalar field at the LHC. We examined these processes through Monte Carlo simulation and found that they can reach the observable level at the LHC in quite a large part of the parameter space of the TC2 model.

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