Feasibility study of the measurement of Higgs pair creation at a photon linear collider

Shin Ichi Kawada, Nozomi Maeda, Tohru Takahashi, Katsumasa Ikematsu, Keisuke Fujii, Yoshimasa Kurihara, Koji Tsumura, Daisuke Harada, Shinya Kanemura

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Abstract

We studied the feasibility of the measurement of Higgs pair creation at a photon linear collider. From the sensitivity to the anomalous self-coupling of the Higgs boson, the optimum γγ collision energy was found to be around 270 GeV for a Higgs mass of 120GeV/c2. We found that large backgrounds such as γγ→W +W -, ZZ, and bb̄bb̄ can be suppressed if correct assignment of tracks to parent partons is achieved and Higgs pair events can be observed with a statistical significance of ∼5σ by operating the photon linear collider for 5 years.

Original languageEnglish
Article number113009
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number11
DOIs
Publication statusPublished - Jun 21 2012
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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