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Probing the Higgs portal at the LHC through resonant di-Higgs production

No, Jose M. and Ramsey-Musolf, Michael J. (2014) Probing the Higgs portal at the LHC through resonant di-Higgs production. Physical Review D, 89 (9). Art. No. 095031. ISSN 1550-7998. doi:10.1103/PhysRevD.89.095031.

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We investigate resonant di-Higgs production as a means of probing extended scalar sectors that include a 125 GeV Standard Model-like Higgs boson. For concreteness, we consider a gauge singlet Higgs portal scenario leading to two mixed doublet-singlet states, h_(1,2). For m(_h_2)>2m(_h_1), the resonant di-Higgs production process pp→h_(2)→h_(1)h_(1) will lead to final states associated with the decaying pair of Standard Model-like Higgs scalars. We focus on h_(2) production via gluon fusion and on the bb^¯τ^(+)τ^(−) final state. We find that discovery of the h_(2) at the LHC may be achieved with ≲100  fb^(−1) of integrated luminosity for benchmark parameter choices relevant to cosmology. Our analysis directly maps onto the decoupling limit of the next-to-minimal supersymmetric Standard Model and more generically onto extensions of the Standard Model Higgs sector in which a heavy scalar produced through gluon-fusion decays to a pair of Standard Model-like Higgs bosons.

Item Type:Article
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URLURL TypeDescription DOIArticle Paper
Ramsey-Musolf, Michael J.0000-0001-8110-2479
Additional Information:© 2014 American Physical Society. Received 4 December 2013; published 27 May 2014. J. M. N. thanks Veronica Sanz for very useful discussions. M. J. R. M. thanks B. Brau, C. Dallapiccola, and S. Willocq for helpful discussions and comments on the manuscript. Both authors thank H. Guo, T. Peng, and H. Patel for generating background event samples. J. M. N. is supported by the Science Technology and Facilities Council (STFC) under grant No. ST/J000477/1. M. J. R. M. was supported in part by U.S. Department of Energy Contract No. DE-FG02-08ER41531 and the Wisconsin Alumni Research Foundation. The authors also thank the Excellence Cluster Universe at the Technical University of Munich, where a portion of this work was carried out.
Group:Caltech Theory
Funding AgencyGrant Number
Science and Technology Facilities Council (STFC)ST/J000477/1
Department of Energy (DOE)DE-FG02-08ER41531
Wisconsin Alumni Research FoundationUNSPECIFIED
Issue or Number:9
Classification Code:PACS numbers: 12.60.Fr, 14.80.Ec
Record Number:CaltechAUTHORS:20140708-094409635
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Official Citation:No, J. M., & Ramsey-Musolf, M. (2014). Probing the Higgs portal at the LHC through resonant di-Higgs production. Physical Review D, 89(9), 095031.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47065
Deposited On:08 Jul 2014 20:47
Last Modified:10 Nov 2021 17:34

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