Implications of Neutrino Mass Generation from QCD Confinement

Details Implications of Neutrino Mass Generation from QCD Confinement Implications of Neutrino Mass Generation from QCD Confinement

2005-12-14

arxiv.org/abs/hep-ph/0512188v1

Phys.Lett.B634:55-58,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, Revtex

Scientific paper

10.1016/j.physletb.2006.01.039

We consider the possibility that the quark condensate formed by QCD confinement generates Majorana neutrino masses m_\nu via 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 \Lambda ~ 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 \Lambda. Experimental constraints place a mild hierarchy on the flavor structure of dimension seven operators and the resulting neutrino mass matrix.

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