3 papers
hep-ph2025
Functional Determinants for False Vacuum Decay
Pietro Baratella, Miha Nemevšek, Yutaro Shoji +2
We derive simple expressions to regularise functional determinants from fluctuations of fields with spin 0, 1/2, and 1. These are important for the precise dimensionful determinati…
hep-th2025
False Vacuum Decay Rate From Thin To Thick Walls
Marco Matteini, Miha Nemevšek, Yutaro Shoji +1
We consider a single real scalar field in flat spacetime with a polynomial potential up to , that has a local minimum, the false vacuum, and a deeper global minimum, the true…
hep-ph2024
Revising the full one-loop gauge prefactor in electroweak vacuum stability
Pietro Baratella, Miha Nemevšek, Yutaro Shoji +2
We revisit the decay rate of the electroweak vacuum in the Standard Model with the full one-loop prefactor. We focus on the gauge degrees of freedom and derive the degeneracy facto…