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Systematic analysis of radiative symmetry breaking in models with extended scalar sector

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cris.lastimport.scopus2024-02-12T20:26:59Z
dc.abstract.enRadiative symmetry breaking (RSB) is a theoretically appealing framework for the generation of mass scales through quantum effects. It can be successfully implemented in models with extended scalar and gauge sectors. We provide a systematic analysis of RSB in such models: we review the common approximative methods of studying RSB, emphasising their limits of applicability and discuss the relevance of the relative magnitudes of tree-level and loop contributions as well as the dependence of the results on the renormalisation scale. The general considerations are exemplified within the context of the conformal Standard Model extended with a scalar doublet of a new SU(2)X gauge group, the so-called SU(2)cSM. We show that various perturbative methods of studying RSB may yield significantly different results due to renormalisation-scale dependence. Implementing the renormalisation-group (RG) improvement method recently developed in ref. [1], which is well-suited for multi-scale models, we argue that the use of the RG improved effective potential can alleviate this scale dependence providing more reliable results.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorProkopec, Tomislav
dc.contributor.authorChataignier, Leonardo
dc.contributor.authorŚwieżewska, Bogumiła
dc.contributor.authorSchmidt, Michael G.
dc.date.accessioned2024-01-26T09:27:20Z
dc.date.available2024-01-26T09:27:20Z
dc.date.issued2018
dc.description.financeNie dotyczy
dc.description.number8
dc.description.volume2018
dc.identifier.doi10.1007/JHEP08(2018)083
dc.identifier.issn1126-6708
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/121342
dc.identifier.weblinkhttp://link.springer.com/content/pdf/10.1007/JHEP08(2018)083.pdf
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofJournal of High Energy Physics
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleSystematic analysis of radiative symmetry breaking in models with extended scalar sector
dc.typeJournalArticle
dspace.entity.typePublication