GeV Majorana Neutrinos in Top-quark Decay at the LHC

Oct, 2008
15 pages
Published in:
  • Phys.Rev.D 79 (2009) 014034
e-Print:
Report number:
  • MADPH-08-1524,
  • IPMU-08-0068,
  • CAS-KITPC-ITP-072

Citations per year

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Abstract: (arXiv)
We explore the \Delta L=2 same-sign dilepton signal from top-quark decay via a Majorana neutrino at the LHC in the top anti-top pair production samples. The signature is same-sign dilepton plus multi-jets with no significant missing energy. The most optimistic region lies where the Majorana neutrino mass is between 15-65 GeV. For 300 fb^-1 integrated luminosity, it is possible to probe S_{ij}, the effective mixing parameter, to order of 10^-5.
  • neutrino: Majorana
  • quark: semileptonic decay
  • quark: branching ratio
  • quark: pair production
  • top
  • lepton: pair production
  • jet: multiple production
  • p p: interaction
  • cross section
  • numerical calculations