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Implications of Neutrino Mass Generation from QCD Confinement

Hooman Davoudiasl·Lisa L. Everett
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Abstract

We consider the possibility that the quark condensate formed by QCD confinement generates Majorana neutrino masses m_νvia dimension seven operators. No degrees of freedom beyond the Standard Model are necessary, below the electroweak scale. Obtaining experimentally acceptable neutrino masses requires the new physics scale Λ~ TeV, providing a new motivation for weak-scale discoveries at the LHC. We implement this mechanism using a Z_3 symmetry which leads to a massless up quark above the QCD chiral condensate scale. We use non-helicity-suppressed light meson rare decay data to constrain Λ. Experimental constraints place a mild hierarchy on the flavor structure of dimension seven operators and the resulting neutrino mass matrix.

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Hooman Davoudiasl, Lisa L. Everett. 2005-12-14. Implications of Neutrino Mass Generation from QCD Confinement. https://doi.org/10.1016/j.physletb.2006.01.039

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