Collisions of Strings with Y Junctions

Journal Article · Fri Jul 14 00:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.021602· OSTI ID:20860501

Copeland, E J; Kibble, T W. B.; Steer, D A ^[1]

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1. School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD (United Kingdom)

We study the dynamics of Nambu-Goto strings with junctions at which three strings meet. In particular, we exhibit one simple exact solution and examine the process of intercommuting of two straight strings in which they exchange partners but become joined by a third string. We show that there are important kinematical constraints on this process. The exchange cannot occur if the strings meet with very large relative velocity. This may have important implications for the evolution of cosmic superstring networks and non-Abelian string networks.

• OSTI ID: 20860501
• Journal Information: Physical Review Letters, Vol. 97, Issue 2; Other Information: DOI: 10.1103/PhysRevLett.97.021602; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLLISIONS
COSMOLOGICAL MODELS
EXACT SOLUTIONS
GALACTIC EVOLUTION
SUPERSTRING MODELS
VELOCITY