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LHC dijet constraints on double beta decay

AutorHelo, Juan Carlos; Hirsch, Martin
Palabras claveMajorana neutrinos
Lepton number
Fecha de publicación26-oct-2015
EditorAmerican Physical Society
CitaciónPhysical Review - Section D - Particles and Fields 92 (7): 073017 - 7 (2015)
ResumenWe use LHC dijet data to derive constraints on neutrinoless double beta decay. Upper limits on cross sections for the production of “exotic” resonances, such as a right-handed W boson or a diquark, can be converted into lower limits on the double beta decay half-life for fixed choices of other parameters. Constraints derived from run-I data are already surprisingly strong and complementary to results from searches using same-sign dileptons plus jets. For the case of the left-right symmetric model, in case no new resonance is found in future runs of the LHC and assuming g(L) = g(R), we estimate a lower limit on the double beta decay half-life larger than 10(27) yr can be derived from future dijet data, except in the window of relatively light right-handed neutrino masses in the range 0.5 MeV to 50 GeV. Part of this mass window will be tested in the upcoming SHiP experiment. We also discuss current and future limits on possible scalar diquark contributions to double beta decay that can be derived from dijet data.
Descripción13 pages.- 5 figures
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.92.073017
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