2 research outputs found
New brane solutions in higher order gravity
We consider the higher order gravity with dilaton and with the leading string
theory corrections taken into account. The domain wall type solutions are
investigated for arbitrary number of space-time dimensions. The explicit
formulae for the fixed points and asymptotic behavior of generic solutions are
given. We analyze and classify solutions with finite effective gravitational
constant. There is a class of such solutions which have no singularities. We
discuss in detail the relation between fine tuning and self tuning and clarify
in which sense our solutions are fine-tuning free. The stability of such
solutions is also discussed.Comment: 22 pages, Latex, 3 figures; discussion of effective gravitational
constant and of one type of solutions extended; references adde