GeV Majorana Neutrinos in Top-quark Decay at the LHC
Oct, 2008
15 pages
Published in:
- Phys.Rev.D 79 (2009) 014034
e-Print:
- 0810.5266 [hep-ph]
Report number:
- MADPH-08-1524,
- IPMU-08-0068,
- CAS-KITPC-ITP-072
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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
References(52)
Figures(10)