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  Sensitivity to BSM effects in the Higgs pT spectrum within SMEFT

Battaglia, M., Grazzini, M., Spira, M., & Wiesemann, M. (2021). Sensitivity to BSM effects in the Higgs pT spectrum within SMEFT. Journal of High Energy Physics, 11, 173. doi:10.1007/JHEP11(2021)173.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-1ABE-4 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-1ABF-3
Genre: Journal Article

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 Creators:
Battaglia, Marco1, Author
Grazzini, Massimiliano1, Author
Spira, Michael1, Author
Wiesemann, Marius1, Author
Affiliations:
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650              

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Free keywords: Phenomenology of High Energy Physics
 Abstract: The study of Higgs boson production at large transverse momentum is one of the new frontiers for the LHC Higgs physics programme. This paper considers boosted Higgs production in the Standard Model Effective Field Theory (SMEFT). We focus on the gluon fusion and $t{\bar t}H$ production processes and study the effects of three dimension-6 operators: the top Yukawa operator, the gluon-Higgs effective coupling and the chromomagnetic dipole operator of the top quark. We perform a detailed study of the sensitivity of current and future LHC data to the corresponding Wilson coefficients, consistently accounting for their renormalisation group evolution. We compare the sensitivities obtained with only linear and linear + quadratic terms in the SMEFT by using the spectrum shape and the addition of the Higgs signal yields. We also consider fits of $p_T$ spectra in models with heavy-top partners and in MSSM scenarios with a light scalar top and study the validity of the SMEFT assumptions as a function of the new-particle masses and the Higgs $p_T$ range. Finally, we extract constraints on the Wilson coefficients for gluon fusion from a simultaneous fit to the ATLAS and CMS data and compare our results with those obtained in global SMEFT analyses.

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 Dates: 2021
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: MPP-2021-135
URI: https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2021-135
arXiv: arxiv:2109.02987
DOI: 10.1007/JHEP11(2021)173
URI: https://inspirehep.net/literature?q=find%20eprint%202109.02987
 Degree: -

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Title: Journal of High Energy Physics
  Abbreviation : JHEP
Source Genre: Journal
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Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 11 Sequence Number: - Start / End Page: 173 Identifier: -