Semilocal Cosmic String Networks

Simple item page
dc.creatorAchucarro, A.
dc.creatorSalmi, P.
dc.creatorUrrestilla, J.
dc.date2005-12-19
dc.date2007-06-23
dc.date.accessioned2026-07-07T11:03:55Z
dc.date.available2026-07-07T11:03:55Z
dc.descriptionWe report on a large scale numerical study of networks of semilocal cosmic strings in flat space in the parameter regime in which they are perturbatively stable. We find a population of segments with an exponential length distribution and indications of a scaling network without significant loop formation. Very deep in the stability regime strings of superhorizon size grow rapidly and ``percolate'' through the box. We believe these should lead at late times to a population of infinite strings similar to topologically stable strings. However, the strings are very light; scalar gradients dominate the energy density and the network has thus a global texture-like signature. As a result, the observational constraints, at least from the temperature power spectrum of the CMB, on models predicting semilocal strings, should be closer to those on global textures or monopoles, rather than on topologically stable gauged cosmic strings.
dc.description5 pages, 3 figures; extended discussion about initial conditions; matches published version
dc.identifierhttps://arxiv.org/abs/astro-ph/0512487
dc.identifierhttp://arxiv.org/abs/astro-ph/0512487
dc.identifierPhys.Rev.D75:121703,2007
dc.identifierdoi:10.1103/PhysRevD.75.121703
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188712
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleSemilocal Cosmic String Networks
dc.typetext

Files

Collections

arXiv