Higgs self-coupling measurements at the LHC

Dolan, M.J., Englert, C. and Spannowsky, M. (2012) Higgs self-coupling measurements at the LHC. Journal of High Energy Physics, 2012(10), (doi:10.1007/JHEP10(2012)112)

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Publisher's URL: http://dx.doi.org/10.1007/JHEP10(2012)112


Both the ATLAS and CMS collaborations have reported a Standard Model Higgs-like excess at around mh = 125 GeV. If an SM-like Higgs particle is discovered in this particular mass range, an important additional test of the SM electroweak symmetry breaking sector is the measurement of the Higgs self-interactions. We investigate the prospects of measuring the Higgs self-coupling for mh = 125 GeV in the dominant SM decay channels in boosted and unboosted kinematical regimes. We further enhance sensitivity by considering dihiggs systems recoiling against a hard jet. This configuration exhibits a large sensitivity to the Higgs self-coupling which can be accessed in subjet-based analyses. Combining our analyses allows constraints to be set on the Higgs self-coupling at the LHC.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Englert, Dr Christoph
Authors: Dolan, M.J., Englert, C., and Spannowsky, M.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of High Energy Physics
Journal Abbr.:J. High Energy Phys.
ISSN (Online):1029-8479

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