Hidden particle production at the ILC

Hideo Itoh, Katsumasa Ikematsu, Keisuke Fujii, Hitoshi Hano, Nobuchika Okada, Tamaki Yoshioka

Research output: Contribution to conferencePaperpeer-review


In a class of new physics models, new physics sector is completely or partly hidden, namely, singlet under the Standard Model (SM) gauge group. Hidden fields included in such new physics models communicate with the Standard Model sector through higher dimensional operators. If a cutoff lies in the TeV range, such hidden fields can be produced at future colliders. We consider a scalar filed as an example of the hidden fields. Collider phenomenology on this hidden scalar is similar to that of the SM Higgs boson, but there are several features quite different from those of the Higgs boson. We investigate productions of the hidden scalar at the International Linear Collider (ILC) and study the feasibility of its measurements, in particular, how well the ILC distinguishes the scalar from the Higgs boson, through realistic Monte Carlo simulations.

Original languageEnglish
Number of pages15
Publication statusPublished - 2009
Externally publishedYes
Event8th General Meeting of the ILC Physics Working Group - Tsukuba, Japan
Duration: Jan 21 2009Jan 21 2009


Other8th General Meeting of the ILC Physics Working Group

All Science Journal Classification (ASJC) codes

  • Instrumentation


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