Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/112300
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Type: Journal article
Title: Neutrino masses, grand unification, and baryon number violation
Author: De Gouvêa, A.
Herrero-García, J.
Kobach, A.
Citation: Physical Review D, 2014; 90(1):016011-1-016011-11
Publisher: American Physical Society
Issue Date: 2014
ISSN: 2470-0010
2470-0029
Statement of
Responsibility: 
André de Gouvêa, Juan Herrero-García and Andrew Kobach
Abstract: If grand unification is real, searches for baryon-number violation should be included on the list of observables that may reveal information regarding the origin of neutrino masses. Making use of an effective-operator approach and assuming that nature is SU(5) invariant at very short distances, we estimate the consequences of different scenarios that lead to light Majorana neutrinos for low-energy phenomena that violate baryon number minus lepton number (B - L) by two (or more) units, including neutron-antineutron oscillations and B - L violating nucleon decays. We find that, among all possible effective theories of lepton-number violation that lead to nonzero neutrino masses, only a subset is, broadly speaking, consistent with grand unification.
Rights: © 2014 American Physical Society
DOI: 10.1103/PhysRevD.90.016011
Published version: http://dx.doi.org/10.1103/PhysRevD.90.016011
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