Cosmological Collider Signatures of Massive Vectors from Non-Gaussian Gravitational Waves
Cosmology and Nongalactic Astrophysics
2020-05-06 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
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.
Keywords
Cite
@article{arxiv.2001.03879,
title = {Cosmological Collider Signatures of Massive Vectors from Non-Gaussian Gravitational Waves},
author = {Yi Wang and Yuhang Zhu},
journal= {arXiv preprint arXiv:2001.03879},
year = {2020}
}
Comments
14 pages, 3 figures