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Effects of intermediate scales on renormalization group running of fermion observables in an SO(10) model
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.ORCID iD: 0000-0002-3525-8349
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
2014 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 12, 052- p.Article in journal (Refereed) Published
Abstract [en]

In the context of non-supersymmetric SO(10) models, we analyze the renormalization group equations for the fermions (including neutrinos) from the GUT energy scale down to the electroweak energy scale, explicitly taking into account the effects of an intermediate energy scale induced by a Pati-Salam gauge group. To determine the renormalization group running, we use a numerical minimization procedure based on a nested sampling algorithm that randomly generates the values of 19 model parameters at the GUT scale, evolves them, and finally constructs the values of the physical observables and compares them to the existing experimental data at the electroweak scale. We show that the evolved fermion masses and mixings present sizable deviations from the values obtained without including the effects of the intermediate scale.

Place, publisher, year, edition, pages
2014. no 12, 052- p.
Keyword [en]
GUT, Beyond Standard Model
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-160409DOI: 10.1007/JHEP12(2014)052ISI: 000348146400006ScopusID: 2-s2.0-84918517427OAI: diva2:790356
Swedish Research Council, 621-2011-3985

QC 20150224

Available from: 2015-02-24 Created: 2015-02-19 Last updated: 2015-02-24Bibliographically approved

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