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期刊论文
The flavor-changing rare top decays t→cVV in topcolor-assisted technicolor theory
hep-ph/0103081 v1 8 Mar 2001,-0001,():
In the framework of topcolor-assisted technicolor (TC2) theory, we calculate the contributions of the scalars (the neutral top-pion π 0/t and the top-Higgs h 0/t) to the flavor-changing rare top decays t→cVV (V=W, g, γor Z). Our results show that h 0/t can enhance the standard model BSM r (t −→cWW) by several orders of magnitude for most of the parameter space. The peak of the branching ratio resonance emerges when the top-Higgs mass is between 2mW and mt. The branching aatio Br(t → cWW) can reach 10−3 in the narrow range.
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