Scalar-Kinetic Branes

Details Scalar-Kinetic Branes Scalar-Kinetic Branes

2009-07-11

arxiv.org/abs/0907.1952v3

Europhys.Lett.90:51001, 2010; Europhys.Lett.90:51001,2010

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, no figures, accepted by EPL

Scientific paper

10.1209/0295-5075/90/51001

This work tries to find out thick brane solutions in braneworld scenarios described by a real scalar field in the presence of a scalar-kinetic term $F(X,\phi)=X\phi^m$ with a single extra dimension, where $X=\frac12\nabla_M\phi\nabla^M\phi$ stands for the standard kinetic term and $m=0,1,2\cdots$. We mainly consider bent branes, namely de Sitter and Anti-de Sitter four-dimensional slices. The solutions of a flat brane are obtained when taking the four-dimensional cosmological constant $\Lambda_4\rightarrow 0$. When the parameter $m=0$, these solutions turn to those of the standard scenario. The localization and spectrum of graviton on these branes are also analyzed.

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