Neutral top-pion and the Lepton Flavor Violating Processes

YUE Cong-Xing; YU Dong-Qi

Chinese Physics C> 2005, Vol. 29> Issue(11) : 1027-1032

Neutral top-pion and the Lepton Flavor Violating Processes

YUE Cong-Xing ^, ,
YU Dong-Qi

Department of Physics, Liaoning Normal University, Dalian 116029,China

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Abstract：
In the context of topcolor-assisted techicolor (TC2)model, we study the contributions of the neutral top-pion π0t to the lepton flavor violation (LFV) processes li→ljγ,li→ljlkll and t→clilj respectively. We find that the present experimental upper bound for μ→eγ gives severe constraints on the free parameters of the TC2 model. Under these constraints,we consider the processes li→ljlkll and t→c lilj generated by π0t exchange at the tree-level and the one loop level. Our numerical results show that the neutral top-pion π0t can enhance the branching ratios of these processes by several orders of magnitude. Some of those processes might be used to detect the possible signals of π0t in the futrue high energy experiment.

References

[1]

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YUE Cong-Xing and YU Dong-Qi. Neutral top-pion and the Lepton Flavor Violating Processes[J]. Chinese Physics C, 2005, 29(11): 1027-1032.

YUE Cong-Xing and YU Dong-Qi. Neutral top-pion and the Lepton Flavor Violating Processes[J]. Chinese Physics C, 2005, 29(11): 1027-1032. shu

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Received: 2005-02-21
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Neutral top-pion and the Lepton Flavor Violating Processes

Corresponding author: YUE Cong-Xing,

Department of Physics, Liaoning Normal University, Dalian 116029,China

Received Date: 2005-02-21

Accepted Date: 1900-01-01

Available Online: 2005-11-05

Abstract: In the context of topcolor-assisted techicolor (TC2)model, we study the contributions of the neutral top-pion π0t to the lepton flavor violation (LFV) processes li→ljγ,li→ljlkll and t→clilj respectively. We find that the present experimental upper bound for μ→eγ gives severe constraints on the free parameters of the TC2 model. Under these constraints,we consider the processes li→ljlkll and t→c lilj generated by π0t exchange at the tree-level and the one loop level. Our numerical results show that the neutral top-pion π0t can enhance the branching ratios of these processes by several orders of magnitude. Some of those processes might be used to detect the possible signals of π0t in the futrue high energy experiment.

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Neutral top-pion and the Lepton Flavor Violating Processes

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