Galactic Center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models

The neutrino minimal standard model (vMSM) has been tightly constrained in the recent years, either from dark matter (DM) production or from X-ray and small-scale observations. However, current bounds on sterile neutrino DM can be significantly modified when considering a vMSM extension, in which th...

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Autores principales: Yunis, Rafael, Argüelles, Carlos Raúl, Mavromatos, Nick E., Moliné, Ángeles, Krut, A., Carinci, M., Rueda, Jorge A., Ruffini, Remo
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2020
Materias:
Física
Ciencias Astronómicas
Sterile neutrino
Physics
Dark matter
Neutrino
Galaxy rotation curve
Astrophysics
Standard model
Milky way
Universe
Galaxy
Particle physics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/125008
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-125008
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Astronómicas
Sterile neutrino
Physics
Dark matter
Neutrino
Galaxy rotation curve
Astrophysics
Standard model
Milky way
Universe
Galaxy
Particle physics
spellingShingle Física
Ciencias Astronómicas
Sterile neutrino
Physics
Dark matter
Neutrino
Galaxy rotation curve
Astrophysics
Standard model
Milky way
Universe
Galaxy
Particle physics
Yunis, Rafael
Argüelles, Carlos Raúl
Mavromatos, Nick E.
Moliné, Ángeles
Krut, A.
Carinci, M.
Rueda, Jorge A.
Ruffini, Remo
Galactic Center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models
topic_facet Física
Ciencias Astronómicas
Sterile neutrino
Physics
Dark matter
Neutrino
Galaxy rotation curve
Astrophysics
Standard model
Milky way
Universe
Galaxy
Particle physics
description The neutrino minimal standard model (vMSM) has been tightly constrained in the recent years, either from dark matter (DM) production or from X-ray and small-scale observations. However, current bounds on sterile neutrino DM can be significantly modified when considering a vMSM extension, in which the DM candidates interact via a massive (axial) vector field. In particular, standard production mechanisms in the early Universe can be affected through the decay of such a massive mediator. We perform an indirect detection analysis to study how the vMSM parameter-space constraints are affected by said interactions. We compute the X-ray fluxes considering a DM profile that self-consistently accounts for the particle physics model by using an updated version of the Ruffini-Arguelles-Rueda (RAR) fermionic ("ino") model, instead of phenomenological profiles such as the Navarro-Frenk-White (NFW) distribution. We show that the RAR profile accounting for interacting DM, is compatible with measurements of the Galaxy rotation curve and constraints on the DM self-interacting cross section from the Bullet cluster. A new analysis of the X-ray NuSTAR data in the central parsec of the Milky Way, is here performed to derive constraints on the self-interacting sterile neutrino parameter-space. Such constraints are stronger than those obtained with commonly used DM profiles, due to the dense DM core characteristic of the RAR profiles.
format Articulo
Preprint
author Yunis, Rafael
Argüelles, Carlos Raúl
Mavromatos, Nick E.
Moliné, Ángeles
Krut, A.
Carinci, M.
Rueda, Jorge A.
Ruffini, Remo
author_facet Yunis, Rafael
Argüelles, Carlos Raúl
Mavromatos, Nick E.
Moliné, Ángeles
Krut, A.
Carinci, M.
Rueda, Jorge A.
Ruffini, Remo
author_sort Yunis, Rafael
title Galactic Center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models
title_short Galactic Center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models
title_full Galactic Center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models
title_fullStr Galactic Center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models
title_full_unstemmed Galactic Center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models
title_sort galactic center constraints on self-interacting sterile neutrinos from fermionic dark matter ("ino") models
publishDate 2020
url http://sedici.unlp.edu.ar/handle/10915/125008
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bdutipo_str Repositorios
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