A New Source of Phase Transition Gravitational Waves: Heavy Particle Braking Across Bubble Walls
arXiv:2508.04314 · doi:10.1007/JHEP02(2026)112
Abstract
Motivated by the new heavy dark matter production mechanism from cosmic phase transition, we propose a novel mechanism for the generation of microscopic gravitational waves (GWs) during cosmological first-order phase transitions arising from the braking of heavy particles as they traverse bubble walls. Unlike the well-known sources such as bubble collisions, sound waves, or turbulence in the plasma, this mechanism originates from the direct interaction between massive particles and the expanding bubble wall. We use quantum field theory to rigorously compute the gravitational radiation. The resulting GW spectrum exhibits distinctive features: The peak frequency is tightly correlated with the bubble wall velocity, while the peak amplitude scales as the fourth power of the heavy particle mass. These unique dependencies offer a new observational handle on particle physics beyond the Standard Model. We illustrate this mechanism within a specific model framework and demonstrate its viability. Our findings enrich the landscape of phase transition GW sources and open new avenues for more directly probing heavy particle dynamics and new physics models in the early universe.
arXiv commentPublished version at JHEP; 44 pages, 7 figures 1 table
References in corpus (69)
- TianQin: a space-borne gravitational wave detector
- Science Case for the Einstein Telescope
- Gravitational Radiation from First-Order Phase Transitions
- Detecting gravitational waves from cosmological phase transitions with LISA: an update
- Beyond LISA: Exploring Future Gravitational Wave Missions
- The Effective Potential and First-Order Phase Transitions: Beyond Leading Order
- Gravitational Wave Production by Collisions: More Bubbles
- Gravitational waves from the sound of a first order phase transition
- Detecting the Cosmic Gravitational Wave Background with the Big Bang Observer
- Gravitational Radiation from Colliding Vacuum Bubbles: Envelope Approximation to Many-Bubble Collisions
- CosmoTransitions: Computing Cosmological Phase Transition Temperatures and Bubble Profiles with Multiple Fields
- On the Maximal Strength of a First-Order Electroweak Phase Transition and its Gravitational Wave Signal
- Gravitational wave energy budget in strongly supercooled phase transitions
- Electroweak Bubble Wall Speed Limit
- Can electroweak bubble walls run away?
- How fast can the wall move? A study of the electroweak phase transition dynamics
- On Effective Degrees of Freedom in the Early Universe
- Gravitational waves from first-order cosmological phase transitions: lifetime of the sound wave source
- Bubble Wall Velocity at the Electroweak Phase Transition
- Gravitational Particle Production in Oscillating Background and Its Cosmological Implications
- Towards an all-orders calculation of the electroweak bubble wall velocity
- Friction pressure on relativistic bubble walls
- Bubble Expansion and the Viability of Singlet-Driven Electroweak Baryogenesis
- Bubble wall velocity: heavy physics effects
- Filtered Dark Matter at a First Order Phase Transition
- Gravitational Waves as a Big Bang Thermometer
- Gravitational Effects on Inflaton Decay
- Gravitational wave production by Hawking radiation from rotating primordial black holes
- Fermi-ball dark matter from a first-order phase transition
- Do Stops Slow Down Electroweak Bubble Walls?
- Gravitational wave background from Standard Model physics: Qualitative features
- GUT-Scale Primordial Black Holes: Consequences and Constraints
- From Boltzmann equations to steady wall velocities
- Gravitational wave background from Standard Model physics: Complete leading order
- Electroweak bubble wall expansion: gravitational waves and baryogenesis in Standard Model-like thermal plasma
- Higgs vacuum stability from the dark matter portal
- Dark matter filtering-out effect during a first-order phase transition
- Bubble wall velocities in local equilibrium
- Gravitational waves from a supercooled electroweak phase transition and their detection with pulsar timing arrays
- Baryogenesis and gravity waves from a UV-completed electroweak phase transition
- Relic gravitational waves from light primordial black holes
- Field-theoretic derivation of bubble-wall force
- Model-independent bubble wall velocities in local thermal equilibrium
- On gravitational and thermal corrections to vacuum decay
- Fluid equations for fast-moving electroweak bubble walls
- Electromagnetic Antennas for the Resonant Detection of the Stochastic Gravitational Wave Background
- Leptogenesis triggered by a first-order phase transition
- Probing the baryogenesis and dark matter relaxed in phase transition by gravitational waves and colliders
- Bubble wall dynamics at the electroweak phase transition
- Cosmological bubble friction in local equilibrium
- Bubble nucleation and growth in very strong cosmological phase transitions
- Cosmological phase transition, baryon asymmetry and dark matter Q-balls
- Stochastic Gravitational Waves from Particle Origin
- Primordial Gravitational Waves From Black Hole Evaporation in Standard and Non-Standard Cosmologies
- Gravitational Wave from Graviton Bremsstrahlung during Reheating
- Electroweak Symmetric Dark Matter Balls
- Quantisation Across Bubble Walls and Friction
- Wall speed and shape in singlet-assisted strong electroweak phase transitions
- Implication of nano-Hertz stochastic gravitational wave on dynamical dark matter through a dark first-order phase transition
- Stochastic Gravitational Waves from Inflaton Decays
- The Supercooling Window at Weak and Strong Coupling
- Gravitational traces of broken gauge symmetries
- Bubble wall velocity during electroweak phase transition in the inert doublet model
- Hydrodynamic backreaction force of cosmological bubble expansion
- Bounds on the bubble wall velocity
- Gravitational Wave Sourced by Decay of Massive Particle from Primordial Black Hole evaporation
- Gauged Q-ball dark matter through a cosmological first-order phase transition
- Hydrodynamic effects on the filtered dark matter produced by a first-order phase transition
- Non-thermal production of heavy vector dark matter from relativistic bubble walls