242 citations · 635 across the 9 of their papers we have counts for
9 papers
Impact of Gravity on Vacuum Stability
Vincenzo Branchina, Emanuele Messina, Dario Zappala
In a pioneering paper on the role of gravity on false vacuum decay, Coleman and De Luccia showed that a strong gravitational field can stabilize the false vacuum, suppressing the f…
Stability and UV completion of the Standard Model
Vincenzo Branchina, Emanuele Messina
The knowledge of the stability condition of the electroweak (EW) vacuum is of the greatest importance for our understanding of beyond Standard Model (BSM) physics. It is widely bel…
PT-symmetric theory in d=0 dimensions
Carl M. Bender, Vincenzo Branchina, Emanuele Messina
A detailed study of a PT-symmetric zero-dimensional quartic theory is presented and a comparison between the properties of this theory and those of a conventional quartic theory is…
The lifetime of the electroweak vacuum and sensitivity to Planck scale physics
Vincenzo Branchina, Emanuele Messina, Marc Sher
If the Standard Model (SM) is valid up to extremely high energy scales, then the Higgs potential becomes unstable at approximately GeV. However, calculations of the lifet…
Top mass determination, Higgs inflation, and vacuum stability
Vincenzo Branchina, Emanuele Messina, Alessia Platania
The possibility that new physics beyond the Standard Model (SM) appears only at the Planck scale is often considered. However, it is usually argued that new physics interacti…
Stability, Higgs Boson Mass and New Physics
Vincenzo Branchina, Emanuele Messina
When the particle with mass GeV discovered at LHC is identified with the Higgs boson of the Standard Model, intriguing and challenging questions arise. Among them, the i…
A compared analysis of the susceptibility in the O(N) theory
Vincenzo Branchina, Emanuele Messina, Dario Zappalà
The longitudinal susceptibility of the O(N) theory in the broken phase is analyzed by means of three different approaches, namely the leading contribution of the 1/N expansio…
Critical behavior of the PT-symmetric quantum field theory
Carl M. Bender, V. Branchina, Emanuele Messina
It was shown recently that a PT-symmetric quantum field theory in dimensions possesses a nontrivial fixed point. The critical behavior of this theory around the fixed…
Ordinary versus PT-symmetric quantum field theory
Carl M. Bender, V. Branchina, Emanuele Messina
A quantum-mechanical theory is PT-symmetric if it is described by a Hamiltonian that commutes with PT, where the operator P performs space reflection and the operator T performs ti…