We investigate the enhancement of neutralino relic density in the context of a realistic cosmological scenario with quintessence. The accurate relic density computation we perform allows us to be sensitive to cases with both shifts in the abundance at the per cent level, and enhancements as large as 10(6). We thoroughly analyse the dependence on the supersymmetric spectrum and on the mass and composition of the lightest neutralino. We point out that supersymmetric models yielding a wino- or higgsino-like lightest neutralino become cosmologically appealing in the presence of quintessence.

SUSY dark matter and quintessence / Profumo, S.; Ullio, P.. - In: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS. - ISSN 1475-7516. - 2003:11(2003), pp. 006.1-006.24. [10.1088/1475-7516/2003/11/006]

SUSY dark matter and quintessence

Ullio, P.
2003-01-01

Abstract

We investigate the enhancement of neutralino relic density in the context of a realistic cosmological scenario with quintessence. The accurate relic density computation we perform allows us to be sensitive to cases with both shifts in the abundance at the per cent level, and enhancements as large as 10(6). We thoroughly analyse the dependence on the supersymmetric spectrum and on the mass and composition of the lightest neutralino. We point out that supersymmetric models yielding a wino- or higgsino-like lightest neutralino become cosmologically appealing in the presence of quintessence.
2003
2003
11
1
24
006
https://doi.org/10.1088/1475-7516/2003/11/006
https://arxiv.org/abs/hep-ph/0309220
Profumo, S.; Ullio, P.
File in questo prodotto:
File Dimensione Formato  
JCAP_2003_11_006.pdf

non disponibili

Tipologia: Versione Editoriale (PDF)
Licenza: Non specificato
Dimensione 461.04 kB
Formato Adobe PDF
461.04 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/13381
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 82
  • ???jsp.display-item.citation.isi??? 135
social impact