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Meson spectrum in SU(N) gauge theories with quarks in higher representations: A check of Casimir scaling hypothesis

dc.rights.licenseCC6en_US
dc.contributor.authorBUISSERET, Fabien
dc.contributor.authorSemay, Claude
dc.date.accessioned2020-08-18T07:14:46Z
dc.date.available2020-08-18T07:14:46Z
dc.date.issued2020-06-01
dc.identifier.urihttps://luck.synhera.be/handle/123456789/282
dc.identifier.doi10.1016/j.rinp.2020.103057en_US
dc.description.abstractGauge theories with gauge group and quarks belonging to arbitrary representations of SU(N) form a rich landscape of QCD-like theories, whose study can shed new light on the properties of confinement. Four cases are particularly worth of interest: quarks in the fundamental representation, quarks in the 2-indice (anti)symmetric representation and quarks in the adjoint representation. The last three corresponding QCD-like theories are equivalent at large-N for bosonic observables: It is the orientifold equivalence. The behavior of the lightest vector meson mass versus N has been studied in quenched lattice QCD in the chiral limit in these theories. We show that the observed behaviors are compatible with a string tension proportional to the quadratic Casimir of SU(N) in the quark color representation, i.e. with the Casimir scaling hypothesis. The large-N limit of some excited meson masses computed in quenched lattice QCD with quarks in the fundamental representation is also shown to be compatible with QCD string’s well-known signature: Regge trajectories.en_US
dc.description.sponsorshipNoneen_US
dc.language.isoENen_US
dc.publisherElsevieren_US
dc.relation.ispartofResults in Physicsen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.subjectMesonsen_US
dc.subjectCasimir scalingen_US
dc.subjectHigher representationen_US
dc.titleMeson spectrum in SU(N) gauge theories with quarks in higher representations: A check of Casimir scaling hypothesisen_US
dc.typeArticle scientifiqueen_US
synhera.classificationPhysique, chimie, mathématiques & sciences de la terre>>Physiqueen_US
synhera.institutionCeREF Techniqueen_US
synhera.otherinstitutionUMONSen_US
synhera.cost.total1010en_US
synhera.cost.apc1010en_US
synhera.cost.comp0en_US
synhera.cost.acccomp0en_US
dc.description.versionOuien_US
dc.rights.holderElsevieren_US


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