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dc.contributor.authorAllanach, BC
dc.contributor.authorVoigt, A
dc.date.accessioned2018-10-22T06:54:01Z
dc.date.available2018-10-22T06:54:01Z
dc.date.issued2018
dc.identifier.issn1434-6044
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/284191
dc.description.abstractWe quantify and examine the uncertainties in predictions of the lightest $CP$ even Higgs boson pole mass $M_h$ in the Minimal Supersymmetric Standard Model (MSSM), utilising current spectrum generators and including some three-loop corrections. There are two broadly different approximations being used: effective field theory (EFT) where an effective Standard Model (SM) is used below a supersymmetric mass scale, and a fixed order calculation, where the MSSM is matched to QCD$\times$QED at the electroweak scale. The uncertainties on the $M_h$ prediction in each approach are broken down into logarithmic and finite pieces. The inferred values of the stop mass parameters are sensitively dependent upon the precision of the prediction for $M_h$. The fixed order calculation appears to be more accurate below a supersymmetry (SUSY) mass scale of $M_S \approx 1.2$ TeV, whereas above this scale, the EFT calculation is more accurate. We also revisit the range of the lightest stop mass across fine-tuned parameter space that has an appropriate stable vacuum and is compatible with the lightest $CP$ even Higgs boson $h$ being identified with the one discovered at the ATLAS and CMS experiments in 2012; we achieve a maximum value of $\sim 10^{11}$ GeV.
dc.publisherSpringer Science and Business Media LLC
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleUncertainties in the lightest CP even Higgs boson mass prediction in the minimal supersymmetric standard model: fixed order versus effective field theory prediction
dc.typeArticle
prism.issueIdentifier7
prism.publicationDate2018
prism.publicationNameEuropean Physical Journal C
prism.volume78
dc.identifier.doi10.17863/CAM.31559
dcterms.dateAccepted2018-07-02
rioxxterms.versionofrecord10.1140/epjc/s10052-018-6046-z
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-07-01
dc.contributor.orcidAllanach, Benjamin [0000-0003-4635-6830]
dc.identifier.eissn1434-6052
rioxxterms.typeJournal Article/Review
pubs.funder-project-idScience and Technology Facilities Council (ST/P000681/1)
cam.issuedOnline2018-07-12
cam.orpheus.successThu Jan 30 10:54:11 GMT 2020 - The item has an open VoR version.
rioxxterms.freetoread.startdate2100-01-01


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International