2 citations · 3 across the 4 of their papers we have counts for
4 papers
String-induced vacuum decay and its gravitational wave signatures
Aleksandr Chatrchyan, Florian Niedermann, Phoebe Richman-Taylor
False vacuum decay typically proceeds via the nucleation of spherical bubbles of true vacuum, described by symmetric field configurations in Euclidean time. In this work, we…
Standard Model Baryon Number Violation at Zero Temperature from Higgs Bubble Collisions
Nabeen Bhusal, Simone Blasi, Martina Cataldi +3
We compute for the first time baryon number violation at zero temperature from Higgs bubble collisions and find that it can be of the same order as that from thermal sphalerons in…
Gravitational waves from a dilaton-induced, first-order QCD phase transition
Aleksandr Chatrchyan, M. C. David Marsh, Charalampos Nikolis
We show that a `QCD dilaton' field, whose vacuum expectation value sets the strong coupling, can render the Quantum Chromodynamic (QCD) confinement transition first-order. The QCD…
Confronting Cold New Early Dark Energy and its Equation of State with Updated CMB, Supernovae, and BAO Data
Aleksandr Chatrchyan, Florian Niedermann, Vivian Poulin +1
Cold New Early Dark Energy (Cold NEDE) addresses the Hubble tension through a triggered vacuum phase transition in the dark sector. In this paper, we constrain a phenomenological f…