Cusps on cosmic superstrings with junctions

Details Cusps on cosmic superstrings with junctions Cusps on cosmic superstrings with junctions

2008-09-12

arxiv.org/abs/0809.2263v1

JCAP 0811:022,2008

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, 5 figures

Scientific paper

10.1088/1475-7516/2008/11/022

The existence of cusps on non-periodic strings ending on D-branes is demonstrated and the conditions, for which such cusps are generic, are derived. The dynamics of F-, D-string and FD-string junctions are investigated. It is shown that pairs of FD-string junctions, such as would form after intercommutations of F- and D-strings, generically contain cusps. This new feature of cosmic superstrings opens up the possibility of extra channels of energy loss from a string network. The phenomenology of cusps on such cosmic superstring networks is compared to that of cusps formed on networks of their field theory analogues, the standard cosmic strings.

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