Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1993-11-24
Phys.Rev. D49 (1994) 4094-4100
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages plus 3 figures in jyTeX; CALT-68-1881
Scientific paper
10.1103/PhysRevD.49.4094
To calculate the temperature at which a first-order cosmological phase transition occurs, one must calculate $F_c(T)$, the free energy of a critical bubble configuration. $F_c(T)$ is often approximated by the classical energy plus an integral over the bubble of the effective potential; one must choose a method for calculating the effective potential when $V''<0$. We test different effective potential approximations at one loop. The agreement is best if one pulls a factor of $\mu^4/T^4$ into the decay rate prefactor [where $\mu^2 = V''(\phi_f)$], and takes the real part of the effective potential in the region $V''<0$. We perform a similar analysis on the 1-dimensional kink.
Brahm David
Lee Clarence L. Y.
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