dc.contributor.author | Montiel, Ariadna | |
dc.contributor.author | Salzano, Vincenzo | |
dc.contributor.author | Lazcoz Sáez, Ruth | |
dc.date.accessioned | 2016-01-05T10:26:07Z | |
dc.date.available | 2016-01-05T10:26:07Z | |
dc.date.issued | 2014-06-02 | |
dc.identifier.citation | Physics Letters B 733 : 209-216 (2014) | es |
dc.identifier.issn | 0370-2693 | |
dc.identifier.issn | 1873-2445 | |
dc.identifier.uri | http://hdl.handle.net/10810/16591 | |
dc.description.abstract | In this work we investigate if a small fraction of quarks and gluons, which escaped hadronization and survived as a uniformly spread perfect fluid, can play the role of both dark matter and dark energy. This fluid, as developed in [1], is characterized by two main parameters: beta, related to the amount of quarks and gluons which act as dark matter; and gamma, acting as the cosmological constant. We explore the feasibility of this model at cosmological scales using data from type Ia Supernovae (SNeIa), Long Gamma-Ray Bursts (LGRB) and direct observational Hubble data. We find that: (i) in general, beta cannot be constrained by SNeIa data nor by LGRB or H(z) data; (ii) gamma can be constrained quite well by all three data sets, contributing with approximate to 78% to the energy matter content; (iii) when a strong prior on (only) baryonic matter is assumed, the two parameters of the model are constrained successfully. (C) 2014 The Authors. Published by Elsevier B.V. | es |
dc.description.sponsorship | A.M. acknowledges financial support from CONACYT-Mexico, through a PhD grant 316197. V.S. and R.L. are supported by the Spanish Ministry of Economy and Competitiveness through research projects FIS2010-15492 and Consolider EPI CSD2010-00064, and also by the Basque Government through research project GIC12/66, and by the University of the Basque Country UPV/EHU under program UFI 11/55. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.rights | info:eu-repo/semantics/openAccess | es |
dc.subject | dark energy | es |
dc.subject | dark matter | es |
dc.subject | unified dark matter models | es |
dc.subject | quark bag model | es |
dc.subject | hubble-space-telescope | es |
dc.subject | gamma-ray bursts | es |
dc.subject | high-redshift supernovae | es |
dc.subject | probe wmap observatios | es |
dc.subject | cosmological constant | es |
dc.subject | accelerating universe | es |
dc.subject | standard candles | es |
dc.subject | chapliyin-gas | es |
dc.subject | quintessence | es |
dc.subject | omega (lambda) | es |
dc.title | Observational constraints on the unified dark matter and dark energy model based on the quark bag model | es |
dc.type | info:eu-repo/semantics/article | es |
dc.rights.holder | ©2014TheAuthors.PublishedbyElsevierB.V.ThisisanopenaccessarticleundertheCCBYlicense(http://creativecommons.org/licenses/by/3.0/).FundedbySCOAP3. | es |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0370269314002883 | es |
dc.identifier.doi | 10.1016/j.physletb.2014.04.048 | |
dc.departamentoes | Física teórica e historia de la ciencia | es_ES |
dc.departamentoeu | Fisika teorikoa eta zientziaren historia | es_ES |
dc.subject.categoria | PHYSICS, NUCLEAR | |