Decay-lepton correlations as probes of anomalous ZZH and gammaZH interactions in e+e- --> ZH with polarized beams

Abstract

We examine the contributions of various couplings in general ZZH and gammaZH interactions arising from new physics to the Higgs production process e+e- --> HZ, followed by the decay of the Z into a charged-lepton pair. We take into account possible longitudinal or transverse beam polarization likely to be available at a linear collider. We show how expectation values of certain simple observables in suitable combinations with appropriate longitudinal beam polarizations can be used to disentangle various couplings from one another. Longitudinal polarization can also improve the sensitivity for measurement of several couplings. A striking result is that using transverse polarization, one of the gammaZH couplings, not otherwise accessible, can be determined independently of all other couplings.

17 pages, latex

References in corpus (7)

• Measuring the Higgs-Vector boson Couplings at Linear $e^{+}{e}^{-}$ Collider
• Role of polarization in probing anomalous gauge interactions of the Higgs boson
• Use of transverse beam polarization to probe anomalous VVH interactions at a Linear Collider
• Probing CP-violating contact interactions in e+e- --> HZ with polarized beams
• Disentangling the Unparticles with polarized beams at e+e- colliders
• Space-time structure of new physics with polarized beams at the linear collider
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Cited by in corpus (9)

• Study of anomalous gauge-Higgs couplings using $Z$ boson polarization at LHC
• Measuring Higgs self couplings in the presence of VVH and VVHH at the ILC
• Anomalous $HZ\gamma$ couplings in photon-induced collisions at the LHC
• Bounds on the anomalous $HZ\gamma$ vertex arising from the process $e^{+}{e}^{-}\to {\tau }^{+}{\tau }^{-}\gamma$
• Influence of anomalous VVH and VVHH on determination of Higgs self couplings at ILC
• $HZ\gamma$ production at $14\mathrm{TeV}$ LHC in next-to-leading order QCD
• Polarized $Z$ cross sections in Higgsstrahlung for the determination of anomalous $ZZH$ couplings
• Optimal estimation of Higgs-Gauge Boson couplings at the future $e^{+}{e}^{-}$ colliders
• Probing CP-violating Higgs-Gauge couplings with Higgsstrahlung at $e^{-}{e}^{+}$ collider