Moduli Fields as Quintessence and the Chameleon

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dc.creatorBrax, Philippe
dc.creatorMartin, Jerome
dc.date2006-12-19
dc.date.accessioned2026-07-07T11:59:36Z
dc.date.available2026-07-07T11:59:36Z
dc.descriptionWe consider models where moduli fields are not stabilized and play the role of quintessence. In order to evade gravitational tests, we investigate the possibility that moduli behave as chameleon fields. We find that, for realistic moduli superpotentials, the chameleon effect is not strong enough, implying that moduli quintessence models are gravitationally ruled out. More generally, we state a no-go theorem for quintessence in supergravity whereby models either behave like a pure cosmological constant or violate gravitational tests
dc.description11 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/hep-th/0612208
dc.identifierhttp://arxiv.org/abs/hep-th/0612208
dc.identifierPhys.Lett.B647:320-329,2007
dc.identifierdoi:10.1016/j.physletb.2007.02.019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206618
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleModuli Fields as Quintessence and the Chameleon
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