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Phys. Rev. Lett. 94, 011303 (2005) [4 pages]

D-Term Inflation, Cosmic Strings, and Consistency with Cosmic Microwave Background Measurements

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Jonathan Rocher*
Institut d'Astrophysique de Paris, GReCO, FRE 2435-CNRS, 98bis boulevard Arago, 75014 Paris, France

Mairi Sakellariadou†
Division of Astrophysics, Astronomy, and Mechanics, Department of Physics, University of Athens, Panepistimiopolis, GR-15784 Zografos, Greece
Département de Physique Théorique, Université de Genève, 24 quai E. Ansermet, CH-1211 Genève 4, Switzerland

Received 14 May 2004; revised 26 August 2004; published 11 January 2005

Standard D-term inflation is studied in the framework of supergravity. D-term inflation produces cosmic strings; however, it can still be compatible with cosmic microwave background (CMB) measurements without invoking any new physics. The cosmic strings contribution to the CMB data is not constant, nor dominant, contrary to some previous results. Using current CMB measurements, the free parameters (gauge and superpotential couplings, as well as the Fayet-Iliopoulos term) of D-term inflation are constrained.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.011303
DOI:
10.1103/PhysRevLett.94.011303
PACS:
98.80.Cq, 11.27.+d, 12.10.Dm, 98.70.Vc

*Electronic address: rocher@iap.fr

†Electronic addresses: msakel@cc.uoa.gr; mairi@mpej.unige.ch

 
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