3 papers
hep-th2020
Exact one-loop false vacuum decay rate
Victor Guada, Miha Nemevšek
We discuss an exact false vacuum decay rate at one loop for a real and complex scalar field in a quartic-quartic potential with two tree-level minima. The bounce solution is used t…
hep-ex2019
Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider
Juliette Alimena, James Beacham, Martino Borsato +198
Particles beyond the Standard Model (SM) can generically have lifetimes that are long compared to SM particles at the weak scale. When produced at experiments such as the Large Had…
hep-th2018
Multifield Polygonal Bounces
Victor Guada, Alessio Maiezza, Miha Nemevšek
We propose a new approach for computing tunneling rates in quantum or thermal field theory with multiple scalar fields. It is based on exact analytical solutions of piecewise linea…