New physics effect on the top-Yukawa coupling at ILC

Shinya Kanemura, Koichi Matsuda, Daisuke Nomura, Koji Tsumura

Research output: Contribution to conferencePaper

Abstract

Measurement of the top-Yukawa coupling is important to understand the fermion mass generation mechanism and dynamics of electroweak symmetry breaking. We discuss the top quark anomalous couplings which can be described by higher dimensional operators. We investigate the process e-e+ → W-W+vv̄ → tt̄vv̄ to study the contribution of the anomalous top-Higgs coupling to the cross section. The effect of the dimension-six top-Higgs interaction on the cross section can be a few hundred percent greater than the SM prediction. Such a large effect can be measured at the International Linear Collider.

Original languageEnglish
Publication statusPublished - Dec 1 2007
Externally publishedYes
Event2007 International Linear Collider Workshop, LCWS 2007 and International Linear Collider Meeting, ILC 2007 - Hamburg, Germany
Duration: May 30 2007Jun 3 2007

Other

Other2007 International Linear Collider Workshop, LCWS 2007 and International Linear Collider Meeting, ILC 2007
CountryGermany
CityHamburg
Period5/30/076/3/07

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Kanemura, S., Matsuda, K., Nomura, D., & Tsumura, K. (2007). New physics effect on the top-Yukawa coupling at ILC. Paper presented at 2007 International Linear Collider Workshop, LCWS 2007 and International Linear Collider Meeting, ILC 2007, Hamburg, Germany.