Journal of High Energy Physics (Mar 2022)

Analytic thin wall false vacuum decay rate

  • Aleksandar Ivanov,
  • Marco Matteini,
  • Miha Nemevšek,
  • Lorenzo Ubaldi

DOI
https://doi.org/10.1007/JHEP03(2022)209
Journal volume & issue
Vol. 2022, no. 3
pp. 1 – 64

Abstract

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Abstract We derive a closed-form false vacuum decay rate at one loop in the thin wall limit, where the true and false vacua are nearly degenerate. We obtain the bounce configuration in D dimensions, together with the Euclidean action with a higher order correction, counter-terms and renormalization group running. We extract the functional determinant via the Gel’fand-Yaglom theorem for low and generic orbital multipoles. The negative and zero eigenvalues appear for low multipoles and the translational zeroes are removed. We compute the fluctuations for generic multipoles, multiply and regulate the orbital modes. We find an explicit finite renormalized decay rate in D = 3, 4 and give a closed-form expression for the finite functional determinant in any dimension.

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