Domain walls, stabilities, and the mass hierarchy of the Randall-Sundrum Model

Details Domain walls, stabilities, and the mass hierarchy of the Randall-Sundrum Model Domain walls, stabilities, and the mass hierarchy of the Randall-Sundrum Model

2000-11-16

arxiv.org/abs/hep-th/0011144v1

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 4 figures

Scientific paper

Randall-Sundrum model, which has a scalar field, is used to investigate the domain structure of the extra dimension and to obtain a possible solution of the mass hierarchy problem. It is found that when the domain wall size is comparable to that of domains, domains become unstable. To construct a reliable theory, a region of physical parameter space, where domains are stable, is identified. Analytic forms of field configurations are obtained by perturbative expansions in term of a small parameter that is approximately equal to the relative size of domain wall with respect to domains. By placing a single 3-brane in one of the domain, one can solve the mass hierarchy problem.

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