Effects of intermediate scales on renormalization group running of fermion observables in an SO(10) model
(English)Manuscript (preprint) (Other academic)
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 scal induced by a Pati-Salam gauge group. To determine the renomalization group running, we use a numerical minimization procedure based on a nested sampling algoritm that randomly generates the values of 19 model parameters at the GUT scale, evolves them, and finally constructs the values of te physical observables and compares them to the existing experimental data at the electroweak scale. We show that the evolved fermion masses and mixings present sizavle deviations from the values obtained without including the effects of the intermediate scale.
renormalization group running, fermion observables, GUT models
Research subject Physics
IdentifiersURN: urn:nbn:se:kth:diva-154046OAI: oai:DiVA.org:kth-154046DiVA: diva2:754859
FunderSwedish Research Council, 621-2011-3985
QC 201410202014-10-132014-10-132014-10-20Bibliographically approved