Phenomenology of a littlest Higgs model with T parity: Including effects of T-odd fermions
Phenomenology of a littlest Higgs model with T parity: Including effects of T-odd fermions
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DOI：
10.1103/physrevd.74.115020
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发表时间：
2006-09
影响因子：
5
通讯作者：
A. Belyaev;C. Chen;K. Tobe;C. Yuan
中科院分区：
文献类型：
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作者：
A. Belyaev;C. Chen;K. Tobe;C. Yuan
我们研究了具有T宇称的最小希格斯模型的对撞机现象学。我们首先强调了t奇态SU(2)-双重态费米子（为了使模型t宇称不变而引入）在高能散射过程中的重要作用，例如qq？？WH+WH-其中WH±是W玻色子的t奇伴子。由于t -奇SU(2)-双重费米子的质量不能太重而与低能数据不符，因此它们可以在欧洲核子研究中心的大型强子对撞机（LHC）上大量产生。因此，我们研究了该模型的对撞机现象学，重点研究了t -奇费米子对LHC中常见粒子的重t宇称伙伴（玻色子或费米子）产生的贡献。对新重粒子的产生截面和衰变分支比进行了分类，并讨论了各种实验特征。
We study the collider phenomenology of a littlest Higgs model with T parity. We first stress the important role of the T-odd SU(2)-doublet fermions (introduced to make the model T-parity invariant) in high energy scattering processes, such as qq? ?WH+WH- where WH± are the T-odd partners of W bosons. Because the mass of the T-odd SU(2)-doublet fermions cannot be too heavy to be consistent with low energy data, they can be copiously produced at the CERN Large Hadron Collider (LHC). Therefore, we study the collider phenomenology of the model with emphasis on the contributions of the T-odd fermion to the production of the heavy T-parity partners (either bosons or fermions) of the usual particles at the LHC. The production cross sections and the decay branching ratios of the new heavy particles are classified and various experimental signatures are discussed.