Dark Solar Wind
Abstract
We study the solar emission of light dark sector particles that self-interact strongly enough to self-thermalize. The resulting outflow behaves like a fluid which accelerates under its own thermal pressure to highly relativistic bulk velocities in the solar system. Compared to the ordinary non-interacting scenario, the local outflow has at least higher number density and correspondingly at least lower average energy per particle. We show how this generic phenomenon arises in a dark sector comprised of millicharged particles strongly self-interacting via a dark photon. The millicharged plasma wind emerging in this model has novel yet predictive signatures that encourages new experimental directions. This phenomenon demonstrates how a small step away from the simplest models can lead to radically different outcomes and thus motivates a broader search for dark sector particles.
Keywords
Cite
@article{arxiv.2205.11527,
title = {Dark Solar Wind},
author = {Jae Hyeok Chang and David E. Kaplan and Surjeet Rajendran and Harikrishnan Ramani and Erwin H. Tanin},
journal= {arXiv preprint arXiv:2205.11527},
year = {2022}
}