Dynamics of strings between walls

Minoru Eto, Toshiaki Fujimori, Takayuki Nagashima, Muneto Nitta, Keisuke Ohashi, Norisuke Sakai

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Configurations of vortex strings stretched between or ending on domain walls were previously found to be 1/4 Bogomol'nyi-Prasad-Sommerfield (BPS) states in N=2 supersymmetric gauge theories in 3+1 dimensions. Among zero modes of string positions, the center of mass of strings in each region between two adjacent domain walls is shown to be non-normalizable whereas the rests are normalizable. We study dynamics of vortex strings stretched between separated domain walls by using two methods, the moduli space (geodesic) approximation of full 1/4 BPS states and the charged particle approximation for string end points in the wall effective action. In the first method we explicitly obtain the effective Lagrangian in the strong coupling limit, which is written in terms of hypergeometric functions, and find the 90° scattering for head-on collision. In the second method the domain wall effective action is assumed to be U(1)N gauge theory, and we find a good agreement between two methods for well-separated strings.

本文言語English
論文番号045015
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
79
4
DOI
出版ステータスPublished - 2009 2 18

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 物理学および天文学(その他)

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