Indirect limits on the CPT violating background in the neutrino sector

Irina Mocioiu, Maxim Pospelov

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


CPT violation in the neutrino sector, suggested as a new way to reconcile different neutrino anomalies, induces at the radiative level observable effects among charged leptons, where high-precision tests of the CPT symmetry are available. We show that, in the models with heavy right-handed Majorana neutrinos, constraints imposed by these experiments require CPT violation in neutrino spectrum be suppressed to a level undetectable for any conceivable neutrino experiment. We find that the CPT violation in the neutrino sector may evade indirect constraints only at the expense of light right-handed neutrinos with small Yukawa couplings to the Standard Model sector or by allowing non-locality well below the electroweak scale.

Original languageEnglish (US)
Pages (from-to)114-119
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number1-4
StatePublished - May 16 2002

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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