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dc.contributor.authorAthenodorou, Andreasen_US
dc.contributor.authorBennett, Eden_US
dc.contributor.authorBergner, Georgen_US
dc.contributor.authorElander, Danielen_US
dc.contributor.authorLin, C. -J. Daviden_US
dc.contributor.authorLucini, Biagioen_US
dc.contributor.authorPiai, Maurizioen_US
dc.date.accessioned2019-04-03T06:41:00Z-
dc.date.available2019-04-03T06:41:00Z-
dc.date.issued2016-06-20en_US
dc.identifier.issn1029-8479en_US
dc.identifier.urihttp://dx.doi.org/10.1007/JHEP06(2016)114en_US
dc.identifier.urihttp://hdl.handle.net/11536/147833-
dc.description.abstractBesides the Higgs particle discovered in 2012, with mass 125 GeV, recent LHC data show tentative signals for new resonances in diboson as well as diphoton searches at high center-of-mass energies (2 TeV and 750 GeV, respectively). If these signals are confirmed (or other new resonances are discovered at the TeV scale), the large hierarchies between masses of new bosons require a dynamical explanation. Motivated by these tentative signals of new physics, we investigate the theoretical possibility that large hierarchies in the masses of glueballs could arise dynamically in new strongly-coupled gauge theories extending the standard model of particle physics. We study lattice data on non-Abelian gauge theories in the (near-)conformal regime as well as a simple toy model in the context of gauge/gravity dualities. We focus our attention on the ratio R between the mass of the lightest spin-2 and spin-0 resonances, that for technical reasons is a particularly convenient and clean observable to study. For models in which (non-perturbative) large anomalous dimensions arise dynamically, we show indications that this mass ratio can be large, with R > 5. Moreover, our results suggest that R might be related to universal properties of the IR fixed point. Our findings provide an interesting step towards understanding large mass ratios in the non-perturbative regime of quantum field theories with (near) IR conformal behaviour.en_US
dc.language.isoen_USen_US
dc.subjectTechnicolor and Composite Modelsen_US
dc.subjectGauge-gravity correspondenceen_US
dc.subjectLattice Quantum Field Theoryen_US
dc.titleLarge mass hierarchies from strongly-coupled dynamicsen_US
dc.typeArticleen_US
dc.identifier.doi10.1007/JHEP06(2016)114en_US
dc.identifier.journalJOURNAL OF HIGH ENERGY PHYSICSen_US
dc.citation.issue6en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department物理研究所zh_TW
dc.contributor.departmentInstitute of Physicsen_US
dc.identifier.wosnumberWOS:000378860400013en_US
dc.citation.woscount5en_US
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