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Nontopological global field dynamics

Journal Article · · Physical Review, D (Particles Fields); (United States)
 [1]
  1. Division of Theoretical Astrophysics, MS-51, Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138 (United States) Department of Physics, Brown University, Providence, Rhode Island 02912 (United States)
We use arguments based on Derrick's theorem to show that the property of collapse, which is the key feature of global texture, appears in several field theory models with broken global O({ital N}) symmetry. Such models do not necessarily have a nontrivial third homotopy group of the vacuum manifold but may give rise to collapsing global field configurations with properties similar to textures. It is verified that configurations with planar and cylindrical geometries do not collapse. The existence of critical parameters for collapse of spherically symmetric global field configurations is verified both analytically and numerically.
DOE Contract Number:
AC02-76ER03130
OSTI ID:
7258820
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:4; ISSN PRVDA; ISSN 0556-2821
Country of Publication:
United States
Language:
English