Confinement and stability of the motion of test particles in thick branes

Details Confinement and stability of the motion of test particles in thick branes Confinement and stability of the motion of test particles in thick branes

2007-02-02

arxiv.org/abs/gr-qc/0702011v2

Phys.Lett.B651:232-238,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

1 figure. Extended analysis to treat general thick branes RSII-type. Added references

Scientific paper

10.1016/j.physletb.2007.06.004

We consider the motion of test particles in a thick brane version of Randall-Sundrum type II model. It is known that gravity alone cannot explain the confinement of test particles in this kind of brane. In this paper we show that a stable confinement in a domain wall is possible by admitting a direct interaction between test particles and a scalar field. This interaction is implemented by a modification of the Lagrangian of the particle which is inspired by a Yukawa-type interaction between fermions and scalar fields.

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