Some implications of neutron mirror neutron oscillation

R. N. Mohapatra, S. Nasri, S. Nussinov

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

We comment on a recently discussed possibility of oscillations between neutrons and degenerate mirror neutrons in the context of mirror models for particles and forces. It has been noted by Bento and Berezhiani that if these oscillations occurred at a rate of τNN′ -1∼s-1, it would help explain putative super GKZ cosmic ray events provided the temperature of the mirror radiation is ∼0.3-0.4 times that of familiar cosmic microwave background radiation. We discuss how such oscillation time scales can be realized in mirror models and find that the simplest nonsupersymmetric model for this idea requires the existence of a low mass (30-3000 GeV) color triplet scalar or vector boson. A supersymmetric model, where this constraint can be avoided is severely constrained by the requirement of maintaining a cooler mirror sector. We also find that the reheat temperature after inflation in generic models that give fast n-n′ oscillation be less than about 300 GeV in order to maintain the required relative coolness of the mirror sector.

Original languageEnglish
Pages (from-to)124-130
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume627
Issue number1-4
DOIs
Publication statusPublished - Oct 27 2005
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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