Prospects of Measuring General Higgs Couplings at e^+e^- Linear Colliders

Abstract

We examine how accurately the general HZV couplings, with V=Z,gamma, may be determined by studying e^+e^- --> Hff-bar processes at future e^+e^- linear colliders. By using the optimal-observable method, which makes use of all available experimental information, we find out which combinations of the various HZV coupling terms may be constrained most efficiently with high luminosity. We also assess the benefits of measuring the tau-lepton helicities, identifying the bottom-hadron charges, polarizing the electron beam and running at two different collider energies. The HZZ couplings are generally found to be well constrained, even without these options, while the HZ-gamma couplings are not. The constraints on the latter may be significantly improved by beam polarization.

28 pages (LaTeX), 5 figures (axodraw and eps)

Cited by in corpus (66)

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• Determining the Structure of Higgs Couplings at the LHC
• The role of polarized positrons and electrons in revealing fundamental interactions at the Linear Collider
• Identifying the Higgs Spin and Parity in Decays to Z Pairs
• Aspects of CP violation in the HZZ coupling at the LHC
• On the future of Higgs, electroweak and diboson measurements at lepton colliders
• Precision Higgsstrahlung as a Probe of New Physics
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• Measuring the Spin of the Higgs Boson
• Signatures of anomalous VVH interactions at a linear collider
• Measuring the Higgs-Vector boson Couplings at Linear $e^{+}{e}^{-}$ Collider
• CP-violating ZZh Coupling at e+e- Linear Colliders
• Determination of the Higgs CP mixing angle in the tau decay channels at the LHC including the Drell-Yan background
• Probing New Physics Scales from Higgs and Electroweak Observables at $e^{+}{e}^{-}$ Higgs Factory
• Higgs ID at the LHC
• The Higgs Mechanism and Loop-induced Decays of a Scalar into Two Z Bosons
• Improving the sensitivity of Higgs boson searches in the golden channel
• Beyond Higgs Couplings: Probing the Higgs with Angular Observables at Future $e^{+}{e}^{-}$ Colliders
• Measuring the Higgs boson parity at a Linear Collider using the tau impact parameter and tau --> rho nu decay
• Testing anomalous gauge couplings of the Higgs boson via weak-boson scatterings at the LHC
• Angular distributions as a probe of anomalous ZZH and gammaZH interactions at a linear collider with polarized beams
• Role of polarization in probing anomalous gauge interactions of the Higgs boson
• Model-independent analysis of Higgs spin and CP properties in the process $e^{+}{e}^{-}\to t\bar{t}\Phi$
• Probing the fermionic Higgs portal at lepton colliders
• Use of transverse beam polarization to probe anomalous VVH interactions at a Linear Collider
• Probing anomalous $ZZ\gamma$ and $Z\gamma \gamma$ Couplings at the $e^{+}{e}^{-}$ Colliders using Optimal Observable Technique
• Anomalous Gauge Interactions of the Higgs Boson: Precision Constraints and Weak Boson Scatterings
• Theoretical Aspects of Standard-Model Higgs-Boson Physics at a Future e^+ e^- Linear Collider
• Probing heavy charged fermions at $e^{+}{e}^{-}$ collider using the Optimal Observable Technique
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• Optimal estimation of Dimension-8 Neutral Triple Gauge Couplings at $e^{+}{e}^{-}$ Colliders
• Probing $HZ\gamma$ and $H\gamma \gamma$ Anomalous Couplings in the Process of $e^{+}{e}^{-}\to H\gamma$
• Study of anomalous gauge-Higgs couplings using $Z$ boson polarization at LHC
• Polarisations of the $Z$ and $W$ bosons in the processes $pp\to ZH$ and $pp\to W_{}^{\pm }H$
• Decay-lepton correlations as probes of anomalous ZZH and gammaZH interactions in e+e- --> ZH with polarized beams
• Anomalous Higgs Couplings at an $e\gamma$ Collider
• Distinguishing CP-odd couplings of the Higgs boson to weak boson pairs
• Probing anomalous gauge-Higgs couplings using $Z$ boson polarization at $e^{+}{e}^{-}$ colliders
• Optimal determination of New Physics couplings: A comparative study
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• CP-violating Higgs-gauge boson couplings in $H\nu \bar{\nu }$ production at three energy stages of CLIC
• Probing Anomalous HZZ Couplings at the LHeC
• A new evaluation of the $HZZ$ coupling: direct bounds on anomalous contributions and $CP$ violating effects via a new asymmetry
• Higgs, SUSY and the Standard Model at $\gamma \gamma$ Colliders
• Exploring Optimal Sensitivity of Lepton Flavor Violating Effective Couplings at the $e^{+}{e}^{-}$ Colliders
• Non-standard Higgs couplings in single Higgs boson production at the LHC and future linear collider
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• Probing the CP nature of Higgs boson through e^-e^+ --> e^-e^+ phi
• Anomalous $HZ\gamma$ couplings in photon-induced collisions at the LHC
• New Physics Searches with Higgs-photon associated production at the Higgs Factory
• Polarized and unpolarized off-shell $H^{\ast }\to ZZ\to 4\ell$ decay above the $2m_Z$ threshold
• Measuring Higgs Coupling to Tau-Leptons at Future e+ e- Colliders
• On the determination of CP-even and CP-odd components of a mixed CP Higgs boson at $e^{+}$ $e^{-}$ collider
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• $H\to Z\gamma$ decay and $CP$ violation
• Leptonic anomalous gauge couplings detection on electron positron colliders
• Measuring $CP$ nature of $h\tau \bar{\tau }$ coupling at $e^{-}p$ collider
• $CP$ violation in the $HZZ$ vertex and left-right asymmetries
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• A set of new observables in the process $e_{}^{+}{e}_{}^{-}\to ZHH$
• Probing CP-violating Higgs-Gauge couplings with Higgsstrahlung at $e^{-}{e}^{+}$ collider
• Optimal New Physics estimation in presence of Standard Model backgrounds