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dc.contributor.authorDi Chiara, Stefano
dc.contributor.authorFoadi, Roshan
dc.contributor.authorTuominen, Kimmo
dc.contributor.authorTähtinen, Sara Karoliina
dc.date.accessioned2015-12-11T12:30:20Z
dc.date.available2015-12-11T12:30:20Z
dc.date.issued2015
dc.identifier.citationDi Chiara, S., Foadi, R., Tuominen, K., & Tähtinen, S. K. (2015). Dynamical origin of the electroweak scale and the 125 GeV scalar. <i>Nuclear Physics B</i>, <i>900</i>, 295-330. <a href="https://doi.org/10.1016/j.nuclphysb.2015.09.013" target="_blank">https://doi.org/10.1016/j.nuclphysb.2015.09.013</a>
dc.identifier.otherCONVID_25339447
dc.identifier.otherTUTKAID_68031
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/48059
dc.description.abstractWe consider a fully dynamical origin for the masses of weak gauge bosons and heavy quarks of the Standard Model. Electroweak symmetry breaking and the gauge boson masses arise from new strong dynamics, which leads to the appearance of a composite scalar in the spectrum of excitations. In order to generate mass for the Standard Model fermions, we consider extended gauge dynamics, effectively represented by four fermion interactions at presently accessible energies. By systematically treating these interactions, we show that they lead to a large reduction of the mass of the scalar resonance. Therefore, interpreting the scalar as the recently observed 125 GeV state implies that the mass originating solely from new strong dynamics can be much heavier, i.e. of the order of 1 TeV. In addition to reducing the mass of the scalar resonance, we show that the four-fermion interactions allow for contributions to the oblique corrections in agreement with the experimental constraints. The couplings of the scalar resonance with the Standard Model gauge bosons and fermions are evaluated, and found to be compatible with the current LHC results. Additional new resonances are expected to be heavy, with masses of the order of a few TeVs, and hence accessible in future experiments.
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofseriesNuclear Physics B
dc.relation.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.otherStandard Model
dc.subject.otherbeyond-the-Standard-Model
dc.subject.otherelectroweak symmetry breaking
dc.subject.othermass
dc.titleDynamical origin of the electroweak scale and the 125 GeV scalar
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201512043913
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2015-12-04T16:15:02Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange295-330
dc.relation.issn0550-3213
dc.relation.numberinseries0
dc.relation.volume900
dc.type.versionpublishedVersion
dc.rights.copyright© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license. Funded by SCOAP3.
dc.rights.accesslevelopenAccessfi
dc.relation.doi10.1016/j.nuclphysb.2015.09.013


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