Accessible lepton-number-violating models and negligible neutrino masses

  title={Accessible lepton-number-violating models and negligible neutrino masses},
  author={Andr{\'e} de Gouv{\^e}a and Wei-Chih Huang and Johannes K{\"o}nig and Manibrata Sen},
  journal={Physical Review D},
Lepton-number violation (LNV), in general, implies nonzero Majorana masses for the Standard Model neutrinos. Since neutrino masses are very small, for generic candidate models of the physics responsible for LNV, the rates for almost all experimentally accessible LNV observables—except for neutrinoless double-beta decay—are expected to be exceedingly small. Guided by effective-operator considerations of LNV phenomena, we identify a complete family of models where lepton number is violated but… 

Constraining lepton number violating interactions in rare kaon decays

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Building UV completions of lepton-number-violating effective operators has proved to be a useful way of studying and classifying models of Majorana neutrino mass. In this paper we describe and

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: ∆ L = 2 lepton number violation (LNV) at the TeV scale could provide an alternative interpretation of positive signal(s) in future neutrinoless double beta (0 νββ ) decay experiments. An

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We study the impacts of dimension-five lepton-number violating operators associated with two same-sign weak bosons,

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Astroparticle physics is undergoing a profound transformation, due to a series of extraordinary new results, such as the discovery of high-energy cosmic neutrinos with IceCube, the direct detection

Mu2e-II: Muon to electron conversion with PIP-II

K. Byrum, S. Corrodi, Y. Oksuzian, P. Winter, L. Xia, A. W. J. Edmonds, J. P. Miller, J. Mott, W. J. Marciano, R. Szafron, R. Bonventre, D. N. Brown, Yu. G. Kolomensky, O. Ning, V. Singh, E. Prebys,

Uncovering a chirally suppressed mechanism of 0νββ decay with LHC searches

  • Michael L. GraesserGang LiMichael J. Ramsey-MusolfTianyang ShenSebastián Urrutia-Quiroga
  • Physics
    Journal of High Energy Physics
  • 2022
∆L = 2 lepton number violation (LNV) at the TeV scale could provide an alternative interpretation of positive signal(s) in future neutrinoless double beta (0νββ) decay experiments. An interesting



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Unified electroweak gauge theories based on the gauge group SU(2)/sub L/ x SU(2)/sub R/ x U(1)/sub B/-L, in which the breakdown of parity invariance is spontaneous, lead most naturally to a massive