Session A13: Cosmological Tests of General Relativity and Supersymmetry
8:30 AM–10:18 AM, Saturday, February 13, 2010
Room: Washington 6
Sponsoring Unit:
DAP
Chair: Will Kinney, University at Buffalo
Abstract ID: BAPS.2010.APR.A13.5
Abstract: A13.00005 : Cosmological Constraints on Moduli from Cosmic Strings
9:18 AM–9:30 AM
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Abstract 
Author:
Eray Sabancilar
(Tufts Institute of Cosmology, Tufts University)
Cosmological constraints on moduli, whose coupling to matter is stronger than Planck mass suppressed coupling, are derived. In particular, moduli are considered to be produced by oscillating loops of cosmic strings and constraints are obtained from their effects on big bang nucleosynthesis and their contribution to diffuse gamma ray background and dark matter. Large volume and warped Type-IIB flux compactifications are taken as examples where strongly coupled moduli are present. Finally, the constraints on cosmic string tension, modulus mass and modulus coupling constant are obtained and it is shown that the constraints are relaxed significantly when the coupling constant is large enough. In addition, the effect of thermal production of moduli are considered and the corresponding constraints are derived.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2010.APR.A13.5