97 citations · 1.2k across the 52 of their papers we have counts for
61 papers
A Cosmic Higgs Collider
Bibhushan Shakya
This paper examines frameworks and phenomenology of ultrarelativistic Higgs vacuum bubble collisions in a first-order phase transition associated with the Standard Model Higgs fiel…
Bubble Friction in Symmetry-Restoring Transitions
Andrew J. Long, Bibhushan Shakya, Julia Anabell Ziegler
In standard (symmetry-breaking) first-order phase transitions, the frictional pressure on expanding bubble walls can be dominated by transition radiation -- the emission of a gauge…
Did our Universe Tunnel out of the Wrong Higgs Vacuum?
Bibhushan Shakya
This paper explores various aspects and implications of the initial configuration of the Standard Model (SM) Higgs field at the beginning of our Universe. It is well known that the…
Cosmic Colliders: High Energy Physics with First-Order Phase Transitions
Bibhushan Shakya
Collisions of vacuum bubbles in the early Universe can act as cosmic-scale high-energy colliders with energy reach close to the Planck scale. Such "cosmic colliders" would represen…
Gravitational Waves from Particles Produced from Bubble Collisions in First-Order Phase Transitions
Keisuke Inomata, Marc Kamionkowski, Kentaro Kasai +1
We discuss a new source of gravitational waves (GWs) from first-order phase transitions. The collisions of bubbles of the new phase can efficiently produce particles that couple to…
Leptogenesis via Bubble Collisions
Martina Cataldi, Bibhushan Shakya
We present a novel realization of leptogenesis from the decays of sterile (right-handed) neutrinos (RHNs) produced from runaway bubble collisions at a first order phase transition.…