6533b85bfe1ef96bd12bb5a4
RESEARCH PRODUCT
Relaxion Stars and their detection via Atomic Physics
Gilad PerezAbhishek BanerjeeHyungjin KimDmitry BudkerDmitry BudkerJoshua Ebysubject
Cosmology and Nongalactic Astrophysics (astro-ph.CO)Atomic Physics (physics.atom-ph)media_common.quotation_subjectDark matterGeneral Physics and AstronomyFOS: Physical scienceslcsh:AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsCompact star01 natural sciencesCosmologyPhysics - Atomic PhysicsGravitational potentialHigh Energy Physics - Phenomenology (hep-ph)lcsh:QB460-4660103 physical sciences010306 general physicsmedia_commonPhysics010308 nuclear & particles physicsHierarchy problemlcsh:QC1-999UniverseHigh Energy Physics - PhenomenologyStarsHaloAtomic physicslcsh:PhysicsAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
The cosmological relaxion can address the hierarchy problem, while its coherent oscillations can constitute dark matter in the present universe. We consider the possibility that the relaxion forms gravitationally bound objects that we denote as relaxion stars. The density of these stars would be higher than that of the local dark matter density, resulting in enhanced signals in table-top detectors, among others. Furthermore, we raise the possibility that these objects may be trapped by an external gravitational potential, such as that of the Earth or the Sun. This leads to formation of relaxion halos of even greater density. We discuss several interesting implications of relaxion halos, as well as detection strategies to probe them.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-21 |