Chaotic inflation and baryogenesis by right-handed sneutrinos

H. Murayama, Hiroshi Suzuki, T. Yanagida, Jun'ichi Yokoyama

Research output: Contribution to journalArticlepeer-review

233 Citations (Scopus)


We present a model of chaotic inflation driven by the superpartner of the right-handed neutrino (NR). This model gives the correct magnitude of the density perturbation observed by the Cosmic Background Explorer satellite with a right-handed neutrino mass 1013 GeV, which is also preferred by the Mikheyev-Smirnov-Wolfenstein solution to the solar neutrino problem. The reheating process is the dacay of the coherently oscillating NR. This decay process also generates lepton asymmetry via CP violation, which will be converted to baryon asymmetry thanks to the electroweak anomaly. This model can incorporate the τ-neutrino mass 10 eV.

Original languageEnglish
Pages (from-to)1912-1915
Number of pages4
JournalPhysical review letters
Issue number13
Publication statusPublished - 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


Dive into the research topics of 'Chaotic inflation and baryogenesis by right-handed sneutrinos'. Together they form a unique fingerprint.

Cite this