Production of scalar Higgs and pseudoscalar Higgs in multi-Higgs doublet models at γγ colliders

Eri Asakawa, Jun Ichi Kamoshita, Akio Sugamoto, Isamu Watanabe

研究成果: Article査読

38 被引用数 (Scopus)

抄録

We present the effects of heavy CP-even (H) and CP-odd (A) Higgs bosons on the production cross section of the process γγ → tt̄ at the energy around the mass poles of the Higgs bosons. It is found that interference between H and A with small mass gap, as well as the ones between Higgs bosons and continuum, contributes to the cross section, if the photon beams are polarized and if we observe the helicity of the top quarks. It is demonstrated in the framework of the minimal supersymmetric extension of the standard model that the H and A contributions can be sizable at future γγ colliders for small values of tan β. The methods to measure the CP-parity of the Higgs boson are also presented. The statistical significance of detecting the Higgs signals and measuring the Higgs CP-parity is evaluated.

本文言語English
ページ(範囲)335-345
ページ数11
ジャーナルEuropean Physical Journal C
14
2
DOI
出版ステータスPublished - 2000
外部発表はい

All Science Journal Classification (ASJC) codes

  • 工学(その他)
  • 物理学および天文学(その他)

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