TY - JOUR
T1 - Higgs boson production and decay in little Higgs models with T-parity
AU - Chen, Chuan Ren
AU - Tobe, Kazuhiro
AU - Yuan, C. P.
N1 - Funding Information:
We thank A. Belyaev, R.S. Chivukula and Jay Hubisz for helpful discussions. This work was supported in part by the US National Science Foundation under award PHY-0244919. The Feynman diagrams in Fig. 1 was drawn with JaxoDraw [20] .
PY - 2006/9/21
Y1 - 2006/9/21
N2 - 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.
AB - 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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U2 - 10.1016/j.physletb.2006.07.053
DO - 10.1016/j.physletb.2006.07.053
M3 - Article
AN - SCOPUS:33748132948
SN - 0370-2693
VL - 640
SP - 263
EP - 271
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 5-6
ER -