Bubble Nucleation Rate In Fourth-Order Gravity

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

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20 pages. TeX with phyzzx macro

Scientific paper

10.1103/PhysRevD.52.961

We calculate the bubble nucleation rate in a fourth-order gravity theory whose action contains an $R^2$ term, under the thin-wall approximation, by two different methods. First the bounce solution is found for the Euclidean version of the original action. Next, we use a conformal transformation to transform the theory into general relativity with an additional scalar field and then proceed to find the bounce solution. The same results are obtained from both calculations.

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