Abstract
The decay rate of neutrinoless double beta (0νββ) decay could be dominated by Lepton Number Violating (LNV) short-range diagrams involving only heavy scalar intermediate particles, known as “topology-II” diagrams. Examples are diagrams with diquarks, leptoquarks or charged scalars. Here, we compare the LNV discovery potentials of the LHC and 0νββ-decay experiments, resorting to three example models, which cover the range of the optimistic-pessimistic cases for 0νββ decay. We use the LHC constraints from dijet as well as leptoquark searches and find that already with 20/fb the LHC will test interesting parts of the parameter space of these models, not excluded by the current limits on 0νββ-decay.
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Gonzalez, L., Helo, J., Hirsch, M. et al. Scalar-mediated double beta decay and LHC. J. High Energ. Phys. 2016, 130 (2016). https://doi.org/10.1007/JHEP12(2016)130
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DOI: https://doi.org/10.1007/JHEP12(2016)130