Measurement of the top-Higgs Yukawa coupling at a Linear e+e- Collider

Abstract

Understanding the mechanism of electroweak symmetry breaking and the origin of boson and fermion masses is among the most pressing questions raised in contemporary particle physics. If these issues involve one (several) Higgs boson(s), a precise measurement of all its (their) properties will be of prime importance. Among those, the Higgs coupling to matter fermions (the Yukawa coupling). At a Linear Collider, the process e+e- -> ttH will allow in principle a direct measurement of the top-Higgs Yukawa coupling. We present a realistic feasibility study of the measurement in the context of the TESLA collider. Four channels are studied and the analysis is repeated for several Higgs mass values within the range 120 GeV - 200 GeV.

arXiv commentAdded reference for section 2

References in corpus (9)

• Search for the Standard Model Higgs Boson at LEP
• HDECAY: a Program for Higgs Boson Decays in the Standard Model and its Supersymmetric Extension
• CIRCE Version 1.0: Beam Spectra for Linear Collider Physics
• Higgs Radiation off Top Quarks in e^+e^- Collisions
• QCD Corrections to Associated Higgs Boson-Heavy Quark Production
• Measuring the Top Quark Yukawa Coupling at a Linear e^+e^- Collider
• String effects in Polyakov loop correlators
• The Large Higgs Energy Region in Higgs Associated Top Pair Production at the Linear Collider
• Model Independent Determination of the Top Yukawa Coupling from LHC and LC

Cited by in corpus (13)

• Physics at the e+ e- Linear Collider
• The electro-weak couplings of the top and bottom quarks -- global fit and future prospects
• From the LHC to Future Colliders
• (Dys)Zphilia or a custodial breaking Higgs at the LHC
• Single production of the top partners at high energy colliders
• Measuring the top Yukawa coupling at the ILC at sqrt(s) = 500 GeV
• The production and decay of the top partner $T$ in the left-right twin higgs model at the ILC and CLIC
• Full simulation study of the top Yukawa coupling at the ILC at $\sqrt{s}$ = 1 TeV
• Probing the indefinite CP nature of the Higgs Boson through decay distributions in the process $e^{+}{e}^{-}\to t\bar{t}\Phi$
• Top Yukawa coupling measurement with indefinite CP Higgs in $e^{+}{e}^{-}\to t\bar{t}\Phi$
• Higgs boson production and decay at $e^{+}{e}^{-}$ colliders as a probe of the Left-Right twin Higgs model
• Projections for Neutral Di-Boson and Di-Higgs Interactions at FCC-he Collider
• Model-independent Higgs coupling measurements at the LHC using the H \to ZZ \to 4l lineshape