Volume 86, Number 6, June 2009
Article Number 61002
Number of page(s) 5
Section The Physics of Elementary Particles and Fields
Published online 10 July 2009
EPL, 86 (2009) 61002
DOI: 10.1209/0295-5075/86/61002

Loop-induced decays of Higgs boson in the left-right twin Higgs model

Yao-Bei Liu1, 2 and Xue-Lei Wang3, 2

1   Henan Institute of Science and Technology - Xinxiang 453003, PRC
2   Kavli Institute for Theoretical Physics China, Chinese Academy of Science - Beijing 100190, PRC
3   College of Physics and Information Engineering, Henan Normal University - Xinxiang 453007, PRC

received 9 December 2008; accepted in final form 3 June 2009; published June 2009
published online 10 July 2009

We analyze the loop-induced decays of the Higgs boson into pairs of gluons and photons in the left-right twin Higgs model. The study shows that the deviation of the partial widths for these decays relative to their Standard Model (SM) values scales with 1/f 2, where f ~ TeV is the symmetry breaking scale in the model. For the mass mixing parameter M = 150 GeV, the LHC and a linear e+e- collider would be sensitive to the deviation in $\Gamma$(H $\rightarrow$ gg) for f $\lesssim$ 770(660) GeV at the 1(2)$\sigma $ level. So the Higgs boson processes at the LHC can be a sensitive probe for the left-right twin Higgs model.

12.60.Fr - Extensions of electroweak Higgs sector.
14.80.Cp - Non-standard-model Higgs bosons.

© EPLA 2009