Constraining anomalous H v V interactions at proton and lepton colliders

Ian Anderson, Sara Bolognesi, Fabrizio Caola, Yanyan Gao, Andrei V. Gritsan, Christopher B. Martin, Kirill Melnikov, Markus Schulze, Nhan V. Tran, Andrew Whitbeck, Yaofu Zhou

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Abstract

In this paper, we study the extent to which CP parity of a Higgs boson, and more generally its anomalous couplings to gauge bosons, can be measured at the LHC and a future electron-positron collider. We consider several processes, including Higgs boson production in gluon and weak boson fusion and production of a Higgs boson in association with an electroweak gauge boson. We consider decays of a Higgs boson including ZZ,WW,γγ, and Zγ. A matrix element approach to three production and decay topologies is developed and applied in the analysis. A complete Monte Carlo simulation of the above processes at proton and e+e- colliders is performed and verified by comparing it to an analytic calculation. Prospects for measuring various tensor couplings at existing and proposed facilities are compared.

Original languageEnglish
Article number035007
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number3
DOIs
StatePublished - Feb 19 2014

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    Anderson, I., Bolognesi, S., Caola, F., Gao, Y., Gritsan, A. V., Martin, C. B., Melnikov, K., Schulze, M., Tran, N. V., Whitbeck, A., & Zhou, Y. (2014). Constraining anomalous H v V interactions at proton and lepton colliders. Physical Review D - Particles, Fields, Gravitation and Cosmology, 89(3), [035007]. https://doi.org/10.1103/PhysRevD.89.035007