D-term inflation without cosmic strings

Details D-term inflation without cosmic strings D-term inflation without cosmic strings

2004-02-04

arxiv.org/abs/hep-th/0402032v2

Phys.Rev.Lett. 92 (2004) 251302

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, uses REVTEX 4; minor typos corrected, references added, version to be published

Scientific paper

10.1103/PhysRevLett.92.251302

We present a superstring-inspired version of D-term inflation which does not lead to cosmic string formation and appears to satisfy the current CMB constraints. It differs from minimal D-term inflation by a second pair of charged superfields which makes the strings non-topological (semilocal). The strings are also BPS, so the scenario is expected to survive supergravity corrections. The second pair of charged superfields arises naturally in several brane and conifold scenarios, but its effect on cosmic string formation had not been noticed so far.

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