Cosmological collider signatures of massive vectors from non-Gaussian gravitational waves
Yi Wang, Yuhang Zhu
Abstract
The cosmological collider provides a model-independent probe of particle physics during inflation. We extend the study of cosmological collider physics to much smaller scales through gravitational wave (GW) probes. With a Chern-Simons interaction, a massive vector field can obtain a chemical potential and its particle production can cause significant non-Gaussian GW signals. We calculate the mass and spin dependences of the induced GW 3-point correlation function in the squeezed limit, and estimate its amplitude. Such signals may be detectable in the current and upcoming GW interferometer experiments.
Topics & Concepts
PhysicsColliderGravitational waveAmplitudeNon-GaussianityCosmologyParticle physicsInflation (cosmology)InterferometryCorrelation function (quantum field theory)Quantum electrodynamicsTheoretical physicsAstrophysicsQuantum mechanicsCosmic microwave backgroundDielectricAnisotropyCosmology and Gravitation TheoriesPulsars and Gravitational Waves ResearchRadio Astronomy Observations and Technology