Leptonic Z decays in the littlest Higgs model with T parity

Journal Article · Sat Nov 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.095006· OSTI ID:21254639

Chongxing, Yue; Jinyan, Liu; Shihai, Zhu ^[1]

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1. Department of Physics, Liaoning Normal University, Dalian 116029 (China)

The littlest Higgs model with T parity (called the LHT model) predicts the existence of the T-odd leptons, which can generate contributions to some leptonic processes at the one-loop level. We calculate their contributions to the leptonic Z decay processes Z{yields}ll{sup '}, Z{yields}ll, and Z{yields}{nu}{nu}. We find that the T-odd leptons can give significant contributions to the branching ratios of these decay processes in most of the parameter space. The experimental measurement values might generate constraints on the free parameters of the LHT model.

• OSTI ID: 21254639
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 9; Other Information: DOI: 10.1103/PhysRevD.78.095006; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
HIGGS MODEL
LEPTONIC DECAY
LEPTONS
PARITY
SIMULATION