Lepton number violation at the LHC with leptoquark and diquark |
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Authors: | Masaya Kohda Hiroaki Sugiyama Koji Tsumura |
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Institution: | 1. Department of Physics, National Taiwan University, Taipei 10617, Taiwan;2. Department of Physics, University of Toyama, Toyama 930-8555, Japan;3. Department of Physics, Graduate School of Science, Nagoya University, Nagoya 464-8602, Japan |
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Abstract: | We investigate a model in which tiny neutrino masses are generated at the two-loop level by using scalar leptoquark and diquark multiplets. The diquark can be singly produced at the LHC, and it can decay into a pair of leptoquarks through the lepton number violating interaction. Subsequent decays of the two leptoquarks can provide a clear signature of the lepton number violation, namely two QCD jets and a pair of same-signed charged leptons without missing energy. We show that the signal process is not suppressed while neutrino masses are appropriately suppressed. |
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