Measurement of little Higgs parameters at international linear collider

Y. Takubo, M. Asano, T. Kusano, R. Sasaki, Hitoshi Yamamoto, E. Asakawa, K. Fujii, S. Matsumoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate a possibility of precision measurements for parameters of the Littlest Higgs model with T-parity at the International Linear Collider (ILC). The model predicts new gauge bosons (AH, ZH, and WH), among which the heavy photon (AH) is a candidate for dark matter. The masses of these new gauge bosons strongly depend on the vacuum expectation value that breaks a global symmetry of the model. Through Monte Carlo simulations of the processes: e ++e- → AHZH and e +e- → W+ HW- H , we show how precisely the masses can be determined at the ILC for a representative parameter point of the model. We also discuss the determination of the Little Higgs parameters and its impact on the future measurement of the thermal abundance of the dark matter relics in our universe.

Original languageEnglish
Title of host publicationPhysics Beyond the Standard Models of Particles, Cosmology and Astrophysics - Proceedings of the 5th International Conference, Beyond 2010
Pages91-99
Number of pages9
Publication statusPublished - 2011 Dec 1
Event5th International Conference on Physics Beyond the Standard Models of Particle Physics, Cosmology and Astrophysics, Beyond 2010 - Cape Town, South Africa
Duration: 2010 Feb 12010 Feb 6

Publication series

NamePhysics Beyond the Standard Models of Particles, Cosmology and Astrophysics - Proceedings of the 5th International Conference, Beyond 2010

Other

Other5th International Conference on Physics Beyond the Standard Models of Particle Physics, Cosmology and Astrophysics, Beyond 2010
CountrySouth Africa
CityCape Town
Period10/2/110/2/6

Keywords

  • Dark matter
  • Little higgs model
  • Relic abundance

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Nuclear and High Energy Physics

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