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Probing topcolor-assisted technicolor from like-sign top pair production at CERN LHC

Abstracts

The topcolor-assisted technicolor (TC2) theory predicts tree-level flavor-changing neutral-current (FCNC) top quark Yukawa couplings with top-pions. Such FCNC interactions will induce like-sign top quark pair productions at CERN Large Hadron Collider (LHC). While these rare productions are far below the observable level in the Standard Model and other popular new physics models such as the Minimal Supersymmetric Model, we find that in a sound part of parameter space the TC2 model can enhance the production cross sections to several tens of fb and thus may be observable at the LHC due to rather low backgrounds. Searching for these productions at the LHC will serve as an excellent probe for the TC2 model.
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Journal:PHYSICAL REVIEW D
Recommended references: Cao, JJ,Liu, GL,Yang, JM.(2016).Probing topcolor-assisted technicolor from like-sign top pair production at CERN LHC.PHYSICAL REVIEW D.[ChinaXiv:201605.01771] (Click&Copy)
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[V1] 2016-05-15 20:46:17 chinaXiv:201605.01771V1 Download
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