Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

Lu Gongru; Yang Hua; Wang Xuelei; Yang Jinmin; Sun Wenqi

Chinese Physics C> 1996, Vol. 20> Issue(5) : 414-421

Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

Department of Physics, Henan Normal University,Xinxiang 453002

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The rare decays t→cV(V=Z,γ,g)induced through loop diagrams are calculated in a minimal Technicolor model(MTC) with a massless weak doublet recently presented by C.D.Carone and H. Georgi.We find that these new contributions can enhance the SM branching fractions by as much as 3—4 orders of magnitude,i.e.,B(t→cZ)≈10,B(t→cγ)≈10^－9, B(t→cg)≈10^－6 for the favorable values of the parameters.It might provide a unique window to detect the virtual effects of technipions in MTC theory.

References

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Lu Gongru, Yang Hua, Wang Xuelei, Yang Jinmin and Sun Wenqi. Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet[J]. Chinese Physics C, 1996, 20(5): 414-421.

Lu Gongru, Yang Hua, Wang Xuelei, Yang Jinmin and Sun Wenqi. Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet[J]. Chinese Physics C, 1996, 20(5): 414-421. shu

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Received: 1900-01-01
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沈阳化工大学材料科学与工程学院沈阳 110142

Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

Corresponding author: Lu Gongru,

Department of Physics, Henan Normal University,Xinxiang 453002

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1996-05-05

Abstract: The rare decays t→cV(V=Z,γ,g)induced through loop diagrams are calculated in a minimal Technicolor model(MTC) with a massless weak doublet recently presented by C.D.Carone and H. Georgi.We find that these new contributions can enhance the SM branching fractions by as much as 3—4 orders of magnitude,i.e.,B(t→cZ)≈10,B(t→cγ)≈10^－9, B(t→cg)≈10^－6 for the favorable values of the parameters.It might provide a unique window to detect the virtual effects of technipions in MTC theory.

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Rare Decays of the Top Quark in the Technicolor Model With a Massless Scalar Doublet

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