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Formation of cosmological brane defects

Tomohiro Matsuda1

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We study cosmological formation of D-term strings, axionic strings, domain walls and Q-balls in braneworld models of the Hanany-Witten type. For the D-term strings, we show that the strings are the daughter branes extended between mother branes. We show that the domain walls can be produced by conventional cosmological phase transitions. In this case, the formation of the domain walls is induced by the continuous deformation of the branes, which means that they are not created as daughter branes. First we consider classical configurations of the axionic strings and the domain walls, then we investigate the quantum effect of the brane dynamics. We also study brane Q-balls and show how they can be distinguished from conventional Q-balls.


Keywords

Brane Dynamics in Gauge Theories

Tachyon Condensation

Cosmology of Theories beyond the SM

 

E-print Number: hep-ph/0402232

Cited: by |

Refers: to

PACS

11.27.+d Extended classical solutions; cosmic strings, domain walls, texture

11.25.-w Strings and branes

98.80.Cq Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.)

11.10.Ef Lagrangian and Hamiltonian approach

Subjects

Gravitation and cosmology

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 11 (November 2004)

Received 22 June 2004, accepted for publication 15 November 2004

Published 7 December 2004



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