Exploring the robustness of stellar cooling constraints on light particles
William DeRocco, Peter W. Graham, Surjeet Rajendran
Abstract
Stellar cooling arguments place strict restrictions on a wide variety of models of new physics. In this paper, we argue that mechanisms to evade these constraints are restricted by thermodynamic arguments, and then present a minimal model extension that allows new particles to evade all stellar constraints. In doing this, we demonstrate that interesting parameter space can be reopened, using the EDGES signal and Xenon1T excess as examples. This mechanism highlights the importance of laboratory experiments in a well-controlled environment to search for new physics, complementary to astrophysical searches.
Topics & Concepts
Robustness (evolution)Variety (cybernetics)Theoretical physicsExtension (predicate logic)PhysicsStatistical physicsComputer scienceArtificial intelligenceBiochemistryChemistryProgramming languageGeneDark Matter and Cosmic PhenomenaAstrophysics and Cosmic PhenomenaRadio Astronomy Observations and Technology