Resonant di-Higgs boson production in the bb¯WW Channel: Probing the electroweak phase transition at the LHC

Huang, T.; No, J.M.; Pernié, L.; Ramsey-Musolf, M.; Safonov, A.; Spannowsky, M.; Winslow, P.

doi:10.1103/physrevd.96.035007

Resonant di-Higgs boson production in the bb¯WW Channel: Probing the electroweak phase transition at the LHC

Huang, T.; No, J.M.; Pernié, L.; Ramsey-Musolf, M.; Safonov, A.; Spannowsky, M.; Winslow, P.

Authors

T. Huang

J.M. No

L. Pernié

M. Ramsey-Musolf

A. Safonov

Professor Michael Spannowsky michael.spannowsky@durham.ac.uk
Director

P. Winslow

Abstract

We analyze the prospects for resonant di-Higgs production searches at the LHC in the bb¯W+W− (W+→ℓ+νℓ, W−→ℓ−ν¯ℓ) channel, as a probe of the nature of the electroweak phase transition in Higgs portal extensions of the Standard Model. In order to maximize the sensitivity in this final state, we develop a new algorithm for the reconstruction of the bb¯W+W− invariant mass in the presence of neutrinos from the W decays, building from a technique developed for the reconstruction of resonances decaying to τ+τ− pairs. We show that resonant di-Higgs production in the bb¯W+W− channel could be a competitive probe of the electroweak phase transition already with the datasets to be collected by the CMS and ATLAS experiments in Run-2 of the LHC. The increase in sensitivity with larger amounts of data accumulated during the High Luminosity LHC phase can be sufficient to enable a potential discovery of the resonant di-Higgs production in this channel.

Citation

Huang, T., No, J., Pernié, L., Ramsey-Musolf, M., Safonov, A., Spannowsky, M., & Winslow, P. (2017). Resonant di-Higgs boson production in the bb¯WW Channel: Probing the electroweak phase transition at the LHC. Physical Review D, 96(3), Article 035007. https://doi.org/10.1103/physrevd.96.035007

Journal Article Type	Article
Acceptance Date	Feb 5, 2017
Online Publication Date	Aug 11, 2017
Publication Date	Aug 11, 2017
Deposit Date	Feb 22, 2017
Publicly Available Date	Aug 30, 2017
Journal	Physical Review D
Print ISSN	2470-0010
Electronic ISSN	2470-0029
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	96
Issue	3
Article Number	035007
DOI	https://doi.org/10.1103/physrevd.96.035007
Related Public URLs	https://arxiv.org/abs/1701.04442

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