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Electroweak production of Higgs boson pairs in 2HDMs

Electroweak production of Higgs boson pairs in 2HDMs
Electroweak production of Higgs boson pairs in 2HDMs
One of the main features of a Two-Higgs Doublet Model (2HDM) is the presence of two additional neutral Higgs states, besides the one mimicking the ~125 GeV state observed at the LHC. The three Higgs bosons of a 2HDM can be produced at the LHC either singly via gluon fusion or in pairs with each other. When analyzing their pair production, the emphasis is laid on gluon-initiated processes, and the electroweak (EW) production is generally not treated on the same footing, assuming its contribution to be highly subleading. We show here that when the sum of the masses of the lightest scalar and pseudoscalar Higgs bosons in the Type-I 2HDM is smaller than the Z-boson mass, their EW pair production can dominate over QCD pair production by orders of magnitude.
hep-ph
1824-8039
Enberg, Rikard
ec453f82-1f21-4dd7-9ad6-ff39b1a0c895
Klemm, William
544edc9f-d55c-410a-a189-81dbf320c0e8
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Munir, Shoaib
9e440f1d-64a4-4f6c-9b55-6c13bb544dcd
Enberg, Rikard
ec453f82-1f21-4dd7-9ad6-ff39b1a0c895
Klemm, William
544edc9f-d55c-410a-a189-81dbf320c0e8
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Munir, Shoaib
9e440f1d-64a4-4f6c-9b55-6c13bb544dcd

Enberg, Rikard, Klemm, William, Moretti, Stefano and Munir, Shoaib (2016) Electroweak production of Higgs boson pairs in 2HDMs. Proceedings of Science, IHEP2016, [1174].

Record type: Article

Abstract

One of the main features of a Two-Higgs Doublet Model (2HDM) is the presence of two additional neutral Higgs states, besides the one mimicking the ~125 GeV state observed at the LHC. The three Higgs bosons of a 2HDM can be produced at the LHC either singly via gluon fusion or in pairs with each other. When analyzing their pair production, the emphasis is laid on gluon-initiated processes, and the electroweak (EW) production is generally not treated on the same footing, assuming its contribution to be highly subleading. We show here that when the sum of the masses of the lightest scalar and pseudoscalar Higgs bosons in the Type-I 2HDM is smaller than the Z-boson mass, their EW pair production can dominate over QCD pair production by orders of magnitude.

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Electroweak production of Higgs boson pairs in 2HDMs - Version of Record
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Published date: 10 August 2016
Additional Information: 4 pages, 2 figures; Proceedings of the 38th International Conference on High Energy Physics (ICHEP2016). First available on ArXiv 21 Aril 2017
Venue - Dates: 38th International Conference on High Energy Physics, Chicago, United States, 2016-08-03 - 2016-08-10
Keywords: hep-ph

Identifiers

Local EPrints ID: 413640
URI: http://eprints.soton.ac.uk/id/eprint/413640
ISSN: 1824-8039
PURE UUID: 4decf1b7-ac74-4ebd-b1e6-34b753f4f56f

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Date deposited: 31 Aug 2017 16:31
Last modified: 19 Jul 2019 18:01

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