Strongly Coupled Cosmologies

S. A. Bonometto, M. Mezzetti, I. Musco, R. Mainini, Andrea Maccio

Research output: Contribution to journalArticle

Abstract

Models including an energy transfer from CDM to DE were widely considered in the literature, namely to allow DE a significant high-. z density. Strongly Coupled cosmologies assume a much larger coupling between DE and CDM, together with an uncoupled warm DM component, the role of Cbeing mostly restricted to radiative eras. This allows us to preserve small scale fluctuations even if the warm particle is quite light, O(100 eV). Linear theory shows full agreement between these cosmologies and ΛCDM on supergalactic scales; e.g., CMB spectra are identical. Simultaneously, simulations show that they ease problems related to the properties of MW satellites and cores in dwarfs. While opening new perspectives on early black hole formation and possibly leading towards unificating DE and inflationary fields, the critical prediction of SC cosmologies is a sterile neutrino or gravitino of mass ~ 100 eV.

Original languageEnglish (US)
Pages (from-to)63-66
Number of pages4
JournalNuclear and Particle Physics Proceedings
Volume265-266
DOIs
StatePublished - Aug 1 2015

Fingerprint

gravitinos
neutrinos
energy transfer
predictions
simulation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Strongly Coupled Cosmologies. / Bonometto, S. A.; Mezzetti, M.; Musco, I.; Mainini, R.; Maccio, Andrea.

In: Nuclear and Particle Physics Proceedings, Vol. 265-266, 01.08.2015, p. 63-66.

Research output: Contribution to journalArticle

Bonometto, SA, Mezzetti, M, Musco, I, Mainini, R & Maccio, A 2015, 'Strongly Coupled Cosmologies', Nuclear and Particle Physics Proceedings, vol. 265-266, pp. 63-66. https://doi.org/10.1016/j.nuclphysbps.2015.06.017
Bonometto, S. A. ; Mezzetti, M. ; Musco, I. ; Mainini, R. ; Maccio, Andrea. / Strongly Coupled Cosmologies. In: Nuclear and Particle Physics Proceedings. 2015 ; Vol. 265-266. pp. 63-66.
@article{0ec6ce76b5f2446dbae6ba19cd6d8eb0,
title = "Strongly Coupled Cosmologies",
abstract = "Models including an energy transfer from CDM to DE were widely considered in the literature, namely to allow DE a significant high-. z density. Strongly Coupled cosmologies assume a much larger coupling between DE and CDM, together with an uncoupled warm DM component, the role of Cbeing mostly restricted to radiative eras. This allows us to preserve small scale fluctuations even if the warm particle is quite light, O(100 eV). Linear theory shows full agreement between these cosmologies and ΛCDM on supergalactic scales; e.g., CMB spectra are identical. Simultaneously, simulations show that they ease problems related to the properties of MW satellites and cores in dwarfs. While opening new perspectives on early black hole formation and possibly leading towards unificating DE and inflationary fields, the critical prediction of SC cosmologies is a sterile neutrino or gravitino of mass ~ 100 eV.",
author = "Bonometto, {S. A.} and M. Mezzetti and I. Musco and R. Mainini and Andrea Maccio",
year = "2015",
month = "8",
day = "1",
doi = "10.1016/j.nuclphysbps.2015.06.017",
language = "English (US)",
volume = "265-266",
pages = "63--66",
journal = "Nuclear and Particle Physics Proceedings",
issn = "2405-6014",
publisher = "Elsevier",

}

TY - JOUR

T1 - Strongly Coupled Cosmologies

AU - Bonometto, S. A.

AU - Mezzetti, M.

AU - Musco, I.

AU - Mainini, R.

AU - Maccio, Andrea

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Models including an energy transfer from CDM to DE were widely considered in the literature, namely to allow DE a significant high-. z density. Strongly Coupled cosmologies assume a much larger coupling between DE and CDM, together with an uncoupled warm DM component, the role of Cbeing mostly restricted to radiative eras. This allows us to preserve small scale fluctuations even if the warm particle is quite light, O(100 eV). Linear theory shows full agreement between these cosmologies and ΛCDM on supergalactic scales; e.g., CMB spectra are identical. Simultaneously, simulations show that they ease problems related to the properties of MW satellites and cores in dwarfs. While opening new perspectives on early black hole formation and possibly leading towards unificating DE and inflationary fields, the critical prediction of SC cosmologies is a sterile neutrino or gravitino of mass ~ 100 eV.

AB - Models including an energy transfer from CDM to DE were widely considered in the literature, namely to allow DE a significant high-. z density. Strongly Coupled cosmologies assume a much larger coupling between DE and CDM, together with an uncoupled warm DM component, the role of Cbeing mostly restricted to radiative eras. This allows us to preserve small scale fluctuations even if the warm particle is quite light, O(100 eV). Linear theory shows full agreement between these cosmologies and ΛCDM on supergalactic scales; e.g., CMB spectra are identical. Simultaneously, simulations show that they ease problems related to the properties of MW satellites and cores in dwarfs. While opening new perspectives on early black hole formation and possibly leading towards unificating DE and inflationary fields, the critical prediction of SC cosmologies is a sterile neutrino or gravitino of mass ~ 100 eV.

UR - http://www.scopus.com/inward/record.url?scp=84947589181&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84947589181&partnerID=8YFLogxK

U2 - 10.1016/j.nuclphysbps.2015.06.017

DO - 10.1016/j.nuclphysbps.2015.06.017

M3 - Article

AN - SCOPUS:84947589181

VL - 265-266

SP - 63

EP - 66

JO - Nuclear and Particle Physics Proceedings

JF - Nuclear and Particle Physics Proceedings

SN - 2405-6014

ER -