Boltzmann hierarchies for self-interacting warm dark matter scenarios

Autores
Yunis, Rafael Ignacio; Argüelles, Carlos Raúl; Lopez Nacir, Diana Laura
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We provide a general framework for self-interacting warm dark matter (WDM) in cosmological perturbations, by deriving from first principles a Boltzmann hierarchy which retains certain independence from a particular interaction Lagrangian. We consider elastic interactions among the massive particles, and obtain a hierarchy which is more general than the ones usually obtained for non-relativistic (as for cold DM) or for ultra-relativistic (as for neutrinos) approximations. The more general momentum-dependent kernel integrals in the Boltzmann collision terms, are explicitly calculated for different field-mediator models, including examples of a scalar field or a massive vector field. As an application, we study the evolution of the interaction rate per particle under the relaxation time approximation, and assess when a given self-interaction is relevant in comparison with the Hubble expansion rate. Our framework aims to be a useful tool to evaluate DM self-interaction effects in the linear power spectrum, with the consequent imprints on non-linear scales of structure formation.
Fil: Yunis, Rafael Ignacio. Università degli studi di Roma "La Sapienza"; Italia
Fil: Argüelles, Carlos Raúl. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lopez Nacir, Diana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
COSMOLOGICAL NEUTRINOS
COSMOLOGICAL PERTURBATION THEORY
DARK MATTER THEORY
PARTICLE PHYSICS - COSMOLOGY CONNECTION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/146035
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Boltzmann hierarchies for self-interacting warm dark matter scenariosYunis, Rafael IgnacioArgüelles, Carlos RaúlLopez Nacir, Diana LauraCOSMOLOGICAL NEUTRINOSCOSMOLOGICAL PERTURBATION THEORYDARK MATTER THEORYPARTICLE PHYSICS - COSMOLOGY CONNECTIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We provide a general framework for self-interacting warm dark matter (WDM) in cosmological perturbations, by deriving from first principles a Boltzmann hierarchy which retains certain independence from a particular interaction Lagrangian. We consider elastic interactions among the massive particles, and obtain a hierarchy which is more general than the ones usually obtained for non-relativistic (as for cold DM) or for ultra-relativistic (as for neutrinos) approximations. The more general momentum-dependent kernel integrals in the Boltzmann collision terms, are explicitly calculated for different field-mediator models, including examples of a scalar field or a massive vector field. As an application, we study the evolution of the interaction rate per particle under the relaxation time approximation, and assess when a given self-interaction is relevant in comparison with the Hubble expansion rate. Our framework aims to be a useful tool to evaluate DM self-interaction effects in the linear power spectrum, with the consequent imprints on non-linear scales of structure formation.Fil: Yunis, Rafael Ignacio. Università degli studi di Roma "La Sapienza"; ItaliaFil: Argüelles, Carlos Raúl. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lopez Nacir, Diana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaIOP Publishing2020-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/146035Yunis, Rafael Ignacio; Argüelles, Carlos Raúl; Lopez Nacir, Diana Laura; Boltzmann hierarchies for self-interacting warm dark matter scenarios; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2020; 9; 9-2020; 1-491475-7516CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1475-7516/2020/09/041info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2020/09/041info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:22:00Zoai:ri.conicet.gov.ar:11336/146035instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:22:00.517CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Boltzmann hierarchies for self-interacting warm dark matter scenarios
title Boltzmann hierarchies for self-interacting warm dark matter scenarios
spellingShingle Boltzmann hierarchies for self-interacting warm dark matter scenarios
Yunis, Rafael Ignacio
COSMOLOGICAL NEUTRINOS
COSMOLOGICAL PERTURBATION THEORY
DARK MATTER THEORY
PARTICLE PHYSICS - COSMOLOGY CONNECTION
title_short Boltzmann hierarchies for self-interacting warm dark matter scenarios
title_full Boltzmann hierarchies for self-interacting warm dark matter scenarios
title_fullStr Boltzmann hierarchies for self-interacting warm dark matter scenarios
title_full_unstemmed Boltzmann hierarchies for self-interacting warm dark matter scenarios
title_sort Boltzmann hierarchies for self-interacting warm dark matter scenarios
dc.creator.none.fl_str_mv Yunis, Rafael Ignacio
Argüelles, Carlos Raúl
Lopez Nacir, Diana Laura
author Yunis, Rafael Ignacio
author_facet Yunis, Rafael Ignacio
Argüelles, Carlos Raúl
Lopez Nacir, Diana Laura
author_role author
author2 Argüelles, Carlos Raúl
Lopez Nacir, Diana Laura
author2_role author
author
dc.subject.none.fl_str_mv COSMOLOGICAL NEUTRINOS
COSMOLOGICAL PERTURBATION THEORY
DARK MATTER THEORY
PARTICLE PHYSICS - COSMOLOGY CONNECTION
topic COSMOLOGICAL NEUTRINOS
COSMOLOGICAL PERTURBATION THEORY
DARK MATTER THEORY
PARTICLE PHYSICS - COSMOLOGY CONNECTION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We provide a general framework for self-interacting warm dark matter (WDM) in cosmological perturbations, by deriving from first principles a Boltzmann hierarchy which retains certain independence from a particular interaction Lagrangian. We consider elastic interactions among the massive particles, and obtain a hierarchy which is more general than the ones usually obtained for non-relativistic (as for cold DM) or for ultra-relativistic (as for neutrinos) approximations. The more general momentum-dependent kernel integrals in the Boltzmann collision terms, are explicitly calculated for different field-mediator models, including examples of a scalar field or a massive vector field. As an application, we study the evolution of the interaction rate per particle under the relaxation time approximation, and assess when a given self-interaction is relevant in comparison with the Hubble expansion rate. Our framework aims to be a useful tool to evaluate DM self-interaction effects in the linear power spectrum, with the consequent imprints on non-linear scales of structure formation.
Fil: Yunis, Rafael Ignacio. Università degli studi di Roma "La Sapienza"; Italia
Fil: Argüelles, Carlos Raúl. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Lopez Nacir, Diana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description We provide a general framework for self-interacting warm dark matter (WDM) in cosmological perturbations, by deriving from first principles a Boltzmann hierarchy which retains certain independence from a particular interaction Lagrangian. We consider elastic interactions among the massive particles, and obtain a hierarchy which is more general than the ones usually obtained for non-relativistic (as for cold DM) or for ultra-relativistic (as for neutrinos) approximations. The more general momentum-dependent kernel integrals in the Boltzmann collision terms, are explicitly calculated for different field-mediator models, including examples of a scalar field or a massive vector field. As an application, we study the evolution of the interaction rate per particle under the relaxation time approximation, and assess when a given self-interaction is relevant in comparison with the Hubble expansion rate. Our framework aims to be a useful tool to evaluate DM self-interaction effects in the linear power spectrum, with the consequent imprints on non-linear scales of structure formation.
publishDate 2020
dc.date.none.fl_str_mv 2020-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/146035
Yunis, Rafael Ignacio; Argüelles, Carlos Raúl; Lopez Nacir, Diana Laura; Boltzmann hierarchies for self-interacting warm dark matter scenarios; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2020; 9; 9-2020; 1-49
1475-7516
CONICET Digital
CONICET
url http://hdl.handle.net/11336/146035
identifier_str_mv Yunis, Rafael Ignacio; Argüelles, Carlos Raúl; Lopez Nacir, Diana Laura; Boltzmann hierarchies for self-interacting warm dark matter scenarios; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2020; 9; 9-2020; 1-49
1475-7516
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1475-7516/2020/09/041
info:eu-repo/semantics/altIdentifier/doi/10.1088/1475-7516/2020/09/041
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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