Regular Article - Theoretical Physics
Light neutrino masses from gravitational condensation: the Schwinger–Dyson approach
Departament de Fisica Teorica and IFIC, Universitat de Valencia, 46100, Burjassot, Spain
2 Department of Physics, Institute for Particle Physics Phenomenology, Durham University, South Road, DH1 3LE, Durham, UK
3 School of Physics and Astronomy, University of Southampton, SO17 1BJ, Southampton, UK
Accepted: 30 May 2021
Published online: 10 June 2021
In this work we demonstrate that non-zero neutrino masses can be generated from gravitational interactions. We solve the Schwinger–Dyson equations to find a non-trivial vacuum thereby determining the neutrino condensate scale and the number of new particle degrees of freedom required for gravitationally induced dynamical chiral symmetry breaking. We show for minimal beyond the Standard Model particle content, the scale of the condensation occurs close to the Planck scale.
© The Author(s) 2021
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