3–7 Dec 2018
Santiago de Cali, Colombia
America/Bogota timezone

Study of the properties of dark matter through the fermionic dispersion relations in a thermal medium at finite temperature

Not scheduled
15m
Auditorio Auxiliar del Aula Máxima (Bloque 3, Piso 4)) (Santiago de Cali, Colombia)

Auditorio Auxiliar del Aula Máxima (Bloque 3, Piso 4))

Santiago de Cali, Colombia

Universidad Santiago de Cali, Calle 5 # 62-00 (Barrio Pampalinda)
Poster

Speaker

Daniel Tamayo Plazas (Universidad Nacional de Colombia)

Description

By not knowing the nature of the particles that make up dark matter, it is inferred that it acts forming a plasma or "dark thermal medium" that fills the space (intergalactic region), interacting to a greater or lesser degree with particles of ordinary matter (standard model particles) that are immersed in it.

In the work I'm developing, I analyze the properties of the SM fermions that can be modified by this interaction and, assuming that the DM acts in a similar way to a plasma at finite temperature and density, it is proposed a model for the dark sector composed by an $SU(N_D)$ gauge theory, and considering that the effects of the dark medium must disappear at very large momenta, this theory is used to study the changes in the SM fermionic dispersion relations.

The developments carried out are used as a reference to analyze the dispersion of
neutrinos coming from very distant sources that in principle are altered by the effects generated by the presence of the hypothetical dark matter particles.

Authors

Daniel Tamayo Plazas (Universidad Nacional de Colombia) Dr Carlos Quimbay Herrera (Universidad Nacional de Colombia)

Presentation materials

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