Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Chuliá, Salvador Centelles"'
The Dirac Scotogenic model provides an elegant mechanism for generating small Dirac neutrino masses at the one loop level. A single abelian discrete $Z_{6}$ symmetry, simultaneously protects the ``Diracness'' of the neutrinos and the stability of the
Externí odkaz:
http://arxiv.org/abs/2409.18513
Publikováno v:
JHEP Volume 2024, article number 60, (2024)
We provide a comprehensive analysis of the Type-I Seesaw family of neutrino mass models, including the conventional type-I seesaw and its low-scale variants, namely the linear and inverse seesaws. We establish that all these models essentially corres
Externí odkaz:
http://arxiv.org/abs/2404.15415
Precision measurements of neutrino-electron scattering may provide a viable way to test the non-minimal form of the charged and neutral current weak interactions within a hypothetical near-detector setup for the Deep Underground Neutrino Experiment (
Externí odkaz:
http://arxiv.org/abs/2402.00114
Modular symmetries offer a dynamic approach to understanding the flavour structure of leptonic mixing. Using the modular $\mathcal{A}_4$ flavour symmetry integrated in a type-II seesaw, we propose a simple and minimalistic model that restricts the ne
Externí odkaz:
http://arxiv.org/abs/2308.08981
Publikováno v:
MPLA Volume No. 38, Issue No. 07, Article No. 2350049, Year 2023
The Dirac scotogenic model provides an elegant mechanism which explains small Dirac neutrino masses and neutrino mixing, with a single symmetry simultaneously protecting the ``Diracness'' of the neutrinos and the stability of the dark matter candidat
Externí odkaz:
http://arxiv.org/abs/2206.11903
Publikováno v:
JHEP 10 (2022) 080
We explore a simple but extremely predictive extension of the scotogenic model. We promote the scotogenic symmetry $\mathbb{Z}_2$ to the flavour non-Abelian symmetry $\Sigma(81)$, which can also automatically protect dark matter stability. In additio
Externí odkaz:
http://arxiv.org/abs/2204.12517
Autor:
Chuliá, Salvador Centelles
In this thesis I discuss in some detail the possibility that neutrinos are Dirac. If this is indeed the case, some extra symmetries beyond the Standard Model gauge group need to be enforced in order to protect Diracness and the smallness of neutrino
Externí odkaz:
http://arxiv.org/abs/2110.15755
Autor:
Döring, Christian, Chuliá, Salvador Centelles, Lindner, Manfred, Schaefer, Bjoern Malte, Bartelmann, Matthias
Publikováno v:
SciPost Phys. 12, 114 (2022)
We study the impact of gravitational waves originating from a first order phase transition on structure formation. To do so, we perform a second order perturbation analysis in the $1+3$ covariant framework and derive a wave equation in which second o
Externí odkaz:
http://arxiv.org/abs/2107.10283
After developing a general criterion for deciding which neutrino mass models belong to the category of inverse seesaw models, we apply it to obtain the Dirac analogue of the canonical Majorana inverse seesaw model. We then generalize the inverse sees
Externí odkaz:
http://arxiv.org/abs/2011.06609
Autor:
Chuliá, Salvador Centelles, Döring, Christian, Rodejohann, Werner, Saldaña-Salazar, Ulises J.
We explore a common symmetrical origin for two long standing problems in particle physics: the strong CP and the fermion mass hierarchy problems. The Peccei--Quinn mechanism solves the former one with an anomalous global $U(1)_{\rm PQ}$ symmetry. Her
Externí odkaz:
http://arxiv.org/abs/2005.13541