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Pinning down Higgs triplets at the LHC

Englert, Christoph; Re, Emanuele; Spannowsky, Michael

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Christoph Englert

Emanuele Re


Extensions of the standard model Higgs sector involving weak isotriplet scalars are not only benchmark candidates to reconcile observed anomalies of the recently discovered Higgs-like particle, but also exhibit a vast parameter space, for which the lightest Higgs’ phenomenology turns out to be very similar to the standard model one. A generic prediction of this model class is the appearance of exotic doubly charged scalar particles. In this paper we adapt existing dilepton+missing energy+jets measurements in the context of supersymmetry searches to the dominant decay mode H±±→W±W± and find that the LHC already starts probing the model’s parameter space. A simple modification toward signatures typical of weak boson fusion searches allows us to formulate even tighter constraints with the 7 TeV LHC data set. A corresponding analysis of this channel performed at 14 TeV center-of-mass energy will constrain the model over the entire parameter space and facilitate potential H±±→W±W± discoveries.


Englert, C., Re, E., & Spannowsky, M. (2013). Pinning down Higgs triplets at the LHC. Physical Review D, 88(3), Article 035024.

Journal Article Type Article
Publication Date Aug 28, 2013
Deposit Date Dec 12, 2014
Publicly Available Date May 21, 2015
Journal Physical Review D
Print ISSN 1550-7998
Electronic ISSN 1550-2368
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 88
Issue 3
Article Number 035024


Published Journal Article (4 Mb)

Copyright Statement
Reprinted with permission from the American Physical Society: Physical Review D 88, 035024 © 2013 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.

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