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The quantum vacuum of the minimal SO(10) GUT
KTH, Skolan för teknikvetenskap (SCI), Teoretisk fysik, Teoretisk partikelfysik.
2010 (engelsk)Inngår i: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 259, nr 1, s. 012098-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We reexamine the longstanding no-go excluding all potentially viable SO(10) →SU(3)c⊗ SU(2)L ⊗ U(1)Y symmetry breaking patterns within the minimal renormalizable non-supersymmetric SO(10) GUT framework featuring the 45-dimensional adjoint representation in the Higgs sector. A simple symmetry argument indicates that quantum effects do change the vacuum structure of the model dramatically. A thorough analysis of the one-loop effective potential reveals that the phenomenologically favoured symmetry breaking chains passing through the SU(4)C ⊗ SU(2)L ⊗ U(1)R or SU(3)c ⊗ SU(2)L ⊗ SU(2)R ⊗ U(1)B-L intermediate stages are, indeed, supported at the quantum level. This brings the class of minimal non-supersymmetric SO(10) GUTs back from oblivion, providing a new ground for a potentially realistic model building.

sted, utgiver, år, opplag, sider
2010. Vol. 259, nr 1, s. 012098-
Emneord [en]
Adjoint representation, Effective potentials, Intermediate stage, Quantum effects, Quantum levels, Quantum vacuum, Realistic model, Symmetry-breaking, Vacuum structures, Quantum electronics, Vacuum
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-150039DOI: 10.1088/1742-6596/259/1/012098ISI: 000295090000098Scopus ID: 2-s2.0-79952374389OAI: oai:DiVA.org:kth-150039DiVA, id: diva2:743502
Konferanse
16th International Symposium on Particles, Strings and Cosmology, PASCOS 2010; Valencia; Spain; 19 July 2010 through 23 July 2010
Merknad

QC 20140904

Tilgjengelig fra: 2014-09-04 Laget: 2014-08-29 Sist oppdatert: 2017-12-05bibliografisk kontrollert

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