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Global bounds on the Type-III Seesaw

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Global bounds on the Type-III Seesaw

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dc.contributor.author	Biggio, Carla
dc.contributor.author	Fernández Martínez, Enrique
dc.contributor.author	Filaci, Manuele
dc.contributor.author	Hernandez-Garcia, Josu
dc.contributor.author	López Pavón, Jacobo
dc.date.accessioned	2021-04-16T13:01:34Z
dc.date.available	2021-04-16T13:01:34Z
dc.date.issued	2020
dc.identifier.citation	Biggio, Carla Fernández Martínez, Enrique Filaci, Manuele Hernandez-Garcia, Josu López Pavón, Jacobo 2020 Global bounds on the Type-III Seesaw The Journal of high energy physics 05 22
dc.identifier.uri	https://hdl.handle.net/10550/78737
dc.description.abstract	We derive general bounds on the Type-III Seesaw parameters from a global fit to flavor and electroweak precision data. We explore and compare three Type-III Seesaw realizations: a general scenario, where an arbitrary number of heavy triplets is integrated out without any further assumption, and the more constrained cases in which only 3 or 2 (minimal scenario) additional heavy states are included. The latter assumption implies rather non-trivial correlations in the Yukawa flavor structure of the model so as to reproduce the neutrino masses and mixings as measured in neutrino oscillations experiments and thus qualitative differences can be found with the more general scenario. In particular, we find that, while the bounds on most elements of the dimension 6 operator coefficients are of order 10−4 for the general and 3-triplet cases, the 2-triplet scenario is more strongly constrained with bounds between 10−5 and 10−7 for the different flavours. We also discuss how these correlations affect the present CMS constraints on the Type-III Seesaw in the minimal 2-triplet scenario.
dc.language.iso	eng
dc.relation.ispartof	The Journal of high energy physics, 2020, vol. 05, num. 22
dc.subject	Partícules (Física nuclear)
dc.title	Global bounds on the Type-III Seesaw
dc.type	journal article	es_ES
dc.date.updated	2021-04-16T13:01:34Z
dc.identifier.doi	10.1007/JHEP05(2020)022
dc.identifier.idgrec	145217
dc.rights.accessRights	open access	es_ES