Quark and lepton masses at the GUT scale including SUSY threshold corrections

dc.creatorAntusch, Stefan
dc.creatorSpinrath, Martin
dc.date2008-04-04
dc.date2008-10-06
dc.date.accessioned2026-07-07T11:49:36Z
dc.date.available2026-07-07T11:49:36Z
dc.descriptionWe investigate the effect of supersymmetric (SUSY) threshold corrections on the values of the running quark and charged lepton masses at the GUT scale within the large $\tanβ$ regime of the MSSM. In addition to the typically dominant SUSY QCD contributions for the quarks, we also include the electroweak contributions for quarks and leptons and show that they can have significant effects. We provide the GUT scale ranges of quark and charged lepton Yukawa couplings as well as of the ratios $m_μ/m_s$, $m_e/m_d$, $y_τ/y_b$ and $y_t/y_b$ for three example ranges of SUSY parameters. We discuss how the enlarged ranges due to threshold effects might open up new possibilities for constructing GUT models of fermion masses and mixings.
dc.description22 pages, 5 figures; comments added, figure 5 extended; version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0804.0717
dc.identifierhttp://arxiv.org/abs/0804.0717
dc.identifierPhys.Rev.D78:075020,2008
dc.identifierdoi:10.1103/PhysRevD.78.075020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203292
dc.subjectHigh Energy Physics - Phenomenology
dc.titleQuark and lepton masses at the GUT scale including SUSY threshold corrections
dc.typetext

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