Digging for top squarks from Higgs data: from signal strengths to differential distributions

Banfi, Andrea, Bond, Andrew, Martin, Adam and Sanz, Verónica (2018) Digging for top squarks from Higgs data: from signal strengths to differential distributions. Journal of High Energy Physics, 2018 (171). pp. 1-27. ISSN 1029-8479

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One way to hunt for top squarks is to look for deviations from the Standard Model in loop level processes involving Higgses. This method is indirect, but complementary to direct searches as it does not rely on specific top squark decays. Studying inclusive Higgs production pp → h alone is insufficient, since there are parameter regions where the effects of the two top squarks approximately cancel. This degeneracy can be broken by looking at the rate for highly boosted Higgses recoiling against a jet, pp → h + jet. In this paper we perform a detailed study of the complementarity of the inclusive and highly boosted processes at the LHC, both in existing Run 1 and Run 2 data, and looking forward to high luminosity. To break the degeneracy, our calculation must maintain the full mass dependence in the loop functions and therefore cannot be recast in an effective field theory framework. We quantify the dependence of both topologies in the top squark parameter space, and outline which levels of experimental and theoretical understanding would be needed for boosted Higgses to be competitive with inclusive Higgs production.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Theoretical Particle Physics Research Group
Subjects: Q Science > QC Physics > QC0770 Nuclear and particle physics. Atomic energy. Radioactivity > QC0793 Elementary particle physics
Depositing User: Andrea Banfi
Date Deposited: 29 Nov 2018 12:47
Last Modified: 29 Nov 2018 12:47
URI: http://srodev.sussex.ac.uk/id/eprint/80507

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