Higgs Boson Production and Decay in Little Higgs Models with T-parity

Details Higgs Boson Production and Decay in Little Higgs Models with T-parity Higgs Boson Production and Decay in Little Higgs Models with T-parity

2006-02-22

arxiv.org/abs/hep-ph/0602211v2

Phys.Lett.B640:263-271,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

Replaced with version to appear in Phys. Lett. B, typos corrected and references added

Scientific paper

10.1016/j.physletb.2006.07.053

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.

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