Discovering sterile neutrinos lighter than MW at the LHC

Claudio O. Dib, C. S. Kim

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

We study the purely leptonic W decays W+→e+μ-e+νe and W+→e+e+μ-ν¯μ (or their charge conjugates) produced at the LHC, induced by sterile neutrinos with mass below MW in the intermediate state. While the first mode is induced by both Dirac or Majorana neutrinos, the second mode is induced only by Majorana neutrinos, as it violates lepton number. We find that, even when the final (anti-)neutrino goes undetected, one could distinguish between these two processes, thus distinguishing the Dirac or Majorana character of the sterile neutrinos, by studying the muon spectrum in the decays.

Original languageEnglish
Article number093009
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume92
Issue number9
DOIs
Publication statusPublished - 2015 Nov 18

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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