Tau Leptonic Decay τ→ lνlντ in Littlest Higgs Model

We consider the τ leptonic decay τ→ lνlντ in the framework of the littlest Higgs (LH) model and calculate the corrections of new particles to this decay. We find that the contributions of the charged scalars can be safely ignored and the LH model is in perfect agreement with the universality of the couplings of the SU gauge bosons to the leptonic charged currents. The corrections of the LH model to the τ leptonic decay τ→ lνlντ axe not sensitive to the parameter c, but depend strongly on the parameters f and x. The precision measured data about the τ leptonic decay demand that the parameter f approximately equal 3.5 TeV and x ＞ 0.1, while agree with the general expectation based on other phenomenological explorations.

作 者： YUE Chong-Xing WANG Wei   作者單位： Department of Physics, Liaoning Normal University, Dalian 116029, China  刊 名： 理論物理通訊（英文版）  ISTIC SCI 英文刊名： COMMUNICATIONS IN THEORETICAL PHYSICS  年，卷(期)： 2004 42(8)  分類號(hào)： O57  關(guān)鍵詞： tau leptonic decay   littlest Higgs model   corrections  

【Tau Leptonic Decay τ→ lνlντ in Littl】相關(guān)文章：

七年級(jí)L13L14L15L16教案04-25

學(xué)科術(shù)語(yǔ) L05-04

l垃圾回收變廢為寶作文11-04

d t n l教案03-08

China daily Hot Words(L)05-04

Letter of Credit(L/C)的分類05-04

七年級(jí)UNIT2L11L12教案04-25

教案unit10L104-25

G-o-l-f(2)05-04

七年級(jí)UNIT2 L9L10教案04-25