Higgs boson production and decay in little Higgs models with T-parity

Chuan Ren Chen, Kazuhiro Tobe, C. P. Yuan

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Abstract

We study Higgs boson production and decay in a certain class of little Higgs models with T-parity in which some T-parity partners of the Standard Model (SM) fermions gain their masses through Yukawa-type couplings. We find that the Higgs boson production cross section of a 120 GeV Higgs boson at the CERN LHC via gg fusion process at one-loop level could be reduced by about 45%, 35% and 20%, as compared to its SM prediction, for a relatively low new particle mass scale f = 600, 700 and 1000 GeV, respectively. On the other hand, the weak boson fusion cross section is close to the SM value. Furthermore, the Higgs boson decay branching ratio into di-photon mode can be enhanced by about 35% in small Higgs mass region in certain case, for the total decay width of Higgs boson in the little Higgs model is always smaller than that in the SM.

Original languageEnglish
Pages (from-to)263-271
Number of pages9
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume640
Issue number5-6
DOIs
Publication statusPublished - 2006 Sep 21

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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