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Cited by 1,093 publications
(1,183 citation statements)
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“…The alternative possibility is another heavier baryogenesis mechanism: here the problem is that the baryon asymmetry gets washed out by triplets unless their L-violating interactions are slower than the expansion rate. In the fermion triplet case, this happens ifm 1 10 −2 eV (which implies significantly displaced decay vertices at LHC [14]) or if the triplet is negligibly coupled to some lepton flavor. However, neutrino oscillations need neutrino masses heavier than 10 −2 eV and with large mixings among flavors.…”
Section: Discussionmentioning
confidence: 99%
“…The alternative possibility is another heavier baryogenesis mechanism: here the problem is that the baryon asymmetry gets washed out by triplets unless their L-violating interactions are slower than the expansion rate. In the fermion triplet case, this happens ifm 1 10 −2 eV (which implies significantly displaced decay vertices at LHC [14]) or if the triplet is negligibly coupled to some lepton flavor. However, neutrino oscillations need neutrino masses heavier than 10 −2 eV and with large mixings among flavors.…”
Section: Discussionmentioning
confidence: 99%
“…The relations (3) and (4) clearly show that the high-energy structure of Y T can be determined by the low-energy neutrino parameters (taking also into account the RG effects on the d = 5 operator which, however, do not introduce unknown flavour structures). The implications of such simple flavour structure become dramatic when one considers LFV induced by RG effects in the mass matrix m 2 L of the left-handed sleptons [9].…”
Section: Recalling the Triplet Seesaw Mechanismmentioning
confidence: 96%
“…Namely, the d = 5 operator Y ν (LH) 2 /M L , describing neutrino masses at the effective level [1], can be generated by decoupling some heavy degrees of freedom at the scale M L where lepton number (L) is broken. This is the essence of the well-celebrated seesaw mechanism which can be realized at the tree-level by exchanging either singlet fermions N [2], or SU(2) W triplets T with zero [3] or non-zero hypercharge [4], at M L . However, we should notice that, from a theoretical perspective, the concept of non-zero neutrino masses by itself does not tell us much about the new physics beyond M L .…”
Section: Introductionmentioning
confidence: 99%
“…However, disentangling these possibilities requires going beyond this effective operator picture. It is well-known that at tree-level only three UV completions for the Weinberg operator exist [8]: these are usually called type-I [9][10][11][12], type-II [13][14][15][16] and type-III [17] seesaw. All…”
Section: Introductionmentioning
confidence: 99%