Big bang nucleosynthesis constraints on scalar-tensor theories of gravity

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dc.creatorCoc, Alain
dc.creatorOlive, Keith A.
dc.creatorUzan, Jean-Philippe
dc.creatorVangioni, Elisabeth
dc.date2006-01-13
dc.date.accessioned2026-07-07T12:29:04Z
dc.date.available2026-07-07T12:29:04Z
dc.descriptionWe investigate BBN in scalar-tensor theories of gravity with arbitrary matter couplings and self-interaction potentials. We first consider the case of a massless dilaton with a quadratic coupling to matter. We perform a full numerical integration of the evolution of the scalar field and compute the resulting light element abundances. We demonstrate in detail the importance of particle mass thresholds on the evolution of the scalar field in a radiation dominated universe. We also consider the simplest extension of this model including a cosmological constant in either the Jordan or Einstein frame.
dc.description19 pages, 30 eps figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0601299
dc.identifierhttp://arxiv.org/abs/astro-ph/0601299
dc.identifierPhys.Rev.D73:083525,2006
dc.identifierdoi:10.1103/PhysRevD.73.083525
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215754
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleBig bang nucleosynthesis constraints on scalar-tensor theories of gravity
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