Signatures of anomalous VVH interactions at a linear collider

Details Signatures of anomalous VVH interactions at a linear collider Signatures of anomalous VVH interactions at a linear collider

2005-09-07

arxiv.org/abs/hep-ph/0509070v3

Phys.Rev. D73 (2006) 035001; Erratum-ibid. D74 (2006) 039904

Physics

High Energy Physics

High Energy Physics - Phenomenology

Typeset in RevTeX4, 16 pages, 12 figures; V2: minor changes in title and Sec. II and III; V3: version appeared in PRD with min

Scientific paper

10.1103/PhysRevD.73.035001

We examine, in a model independent way, the sensitivity of a Linear Collider to the couplings of a light Higgs boson to gauge bosons. Including the possibility of CP violation, we construct several observables that probe the different anomalous couplings possible. For an intermediate mass Higgs, a collider operating at a center of mass energy of 500 GeV and with an integrated luminosity of 500 fb$^{-1}$ is shown to be able to constrain the $ZZH$ vertex at the few per cent level, and with even higher sensitivity in certain directions. However, the lack of sufficient number of observables as well as contamination from the $ZZH$ vertex limits the precision with which the $WWH$ coupling can be measured.

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