Neutrino windows to the origin of matter
Título (trad.)
Ventanas de neutrinos al origen de la materiaAutor (es)
Rosauro Alcaraz, SalvadorDirector (es)
Fernández Martínez, L. EnriqueEntidad
UAM. Departamento de Física Teórica; Instituto de Física Teórica (IFT)Fecha de edición
2021-10-01Materias
Neutrinos; Modelo estándar (Física nuclear); FísicaNota
Tesis doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Física Teórica. Fecha de lectura: 01-10-2021Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Resumen
The Standard Model of particle Physics (SM) is a quantum eld theory based on
the SU(3)c SU(2)L U(1)Y gauge group, which has so far precisely described
strong and electroweak interactions between elementary particles.
We know, however, that the SM cannot be the end of the story, as it is not
able to give a consistent description of gravity. Thus, the SM has to be the low
energy version of a more complete theory. Besides, there are other questions,
both experimental and theoretical ones, which the SM cannot answer that call
for the existence of Physics beyond the Standard Model (BSM).
On the experimental side, the observation of non-baryonic particle dark matter
(DM) in the Universe through its gravitational e ects call for an extension
of the SM to include such new states. Additionally, through Big Bang nucleosynthesis
(BBN) and CMB observations, we know that there is an imbalance
between matter and antimatter. However, even though the SM has all the
necessary ingredients to explain such an asymmetry, it was shown that it cannot
generate the observed imbalance between baryons and antibaryons, such
that BSM Physics is also necessary to explain this fact. Moreover, we have
overwhelming evidence for BSM Physics from the observation of the neutrino
oscillation phenomenon. This is arguably the clearest signal for BSM Physics
from laboratory experiments. Thus, the neutrino sector seems a particularly
green eld area of investigation in order to nd new Physics and to relating
di erent open problems of the SM.
This thesis focuses on the study of a future neutrino super beam to study
neutrino oscillations and probe for the still unknown parameters characterizing
the neutrino sector, such as CP violation, and the neutrino mass ordering.
Secondly, we study the possibility that the DM is primarily interacting with
neutrinos through the neutrino portal, and that therefore large neutrino detectors
acting as observatories might be our best probe to explore the dark
sector. Later on we will consider the possibility that a keV neutrino arising
from the neutrino mass mechanism could be itself the DM. In the third part we
will study the possible relation between the neutrino mass mechanism and the
matter-antimatter asymmetry
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