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28 March 2024
 
  » arxiv » hep-ph/0501131

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Flavor changing scalar couplings and $tgamma(Z)$ production at hadron colliders
Chong-Xing Yue ; Zheng-Jun Zong ;
Date 15 Dec 2004
Journal J.Phys. G31 (2005) 401-408
Subject hep-ph
AbstractWe calculate the contributions of the flavor changing scalar ($FCS$) couplings arised from topcolor-assisted technicolor ($TC2$) models at tree-level to the $tgamma$ and $tZ$ production at the Tevatron and $LHC$ experiments. We find that the production cross sections are very small at the Tevatron with $sqrt{s}=1.96TeV$, which is smaller than 5 fb in most of the parameter space of $TC2$ models. However, the virtual effects of the $FCS$ couplings on the $tgamma(Z)$ production can be easily detected at the $LHC$ with $sqrt{s}=14TeV$ via the final state $gamma lar{ u}b$ ($l^{+}l^{-}lar{ u}b$).
Source arXiv, hep-ph/0501131
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