TY - JOUR
T1 - Discovering sterile neutrinos lighter than MW at the LHC
AU - Dib, Claudio O.
AU - Kim, C. S.
N1 - Publisher Copyright:
© 2015 American Physical Society.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015/11/18
Y1 - 2015/11/18
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84948823722&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84948823722&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.92.093009
DO - 10.1103/PhysRevD.92.093009
M3 - Article
AN - SCOPUS:84948823722
VL - 92
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 9
M1 - 093009
ER -