Implications of Neutrino Mass Generation from QCD Confinement

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.

4 pages, Revtex

References in corpus (5)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Light pseudoscalar decay constants, quark masses, and low energy constants from three-flavor lattice QCD
• Models of Neutrino Mass with a Low Cutoff Scale
• Probing the Origins of Neutrino Mass with Supernova Data
• Comment on "Ambiguities in the Up-Quark Mass"

Cited by in corpus (6)

• The 't Hooft vertex revisited
• Neutrino Masses from the Top Down
• Quark condensate seesaw mechanism for neutrino mass
• Dynamical origin of neutrino masses and dark matter from a new confining sector
• Exploring Strange Origin of Dirac Neutrino Masses at Hadron Colliders
• Phenomenology of Dirac neutrino EFTs up to dimension six