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Abstract: We study the formation of three-string junctions between p,q-cosmicsuperstrings, and collisions between such strings and show that kinematicconstraints analogous to those found previously for collisions of Nambu-Gotostrings apply here too, with suitable modifications to take account of theadditional requirements of flux conservation. We examine in detail severalexamples involving collisions between strings with low values of p and q, andalso examine the rates of growth or shrinkage of strings at a junction.Finally, we briefly discuss the formation of junctions for strings in a warpedspace, specifically with a Klebanov-Strassler throat, and show that similarconstraints still apply with changes to the parameters taking account of thewarping and the background flux.

Autor: E.J. Copeland, H. Firouzjahi, T.W.B. Kibble, D.A. Steer

Fuente: https://arxiv.org/

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