Dark light, dark matter, and the misalignment mechanism
By A. Nelson, J. Scholtz. 2011
334 citations recorded by the source corpus.
We explore the possibility that the dark matter is a condensate of a very light vector boson. Such a condensate could be produced during ination, provided the vector mass arises via the Steuckelberg mechanism. We derive bounds on the kinetic mixing of the dark matter boson with the photon, and point out several potential signatures of this model. In the past decades there has been mounting evidence that approximately 20% of the energy density in the universe is nonbaryonic, pressureless, and very weakly interacting. Structure formation, baryon acoustic oscillations, galactic rotational curves, the Bullet cluster { all of these theories or observations point towards nonbaryonic invisible stu, with the same equation of state as nonrelativistic matter. Unfortunately, there is no compelling experimental evidence that dark matter has any nongravitational interaction with the standard model. At present there are two dark matter theories which are motivated by compelling solutions to other problems beside dark matter: Axions and Weakly Interacting Massive Particles. Both are potentially detectable using specic techniques. It is however possible that neither is correct. Amongst some of the less canonical candidates lie several variants of light massive vector particles [1{3]. Quite a few authors have already considered some of the consequences of the existence of such particles [3{8]. However, the conclusion of these authors is that that it is dicult to obtain suciently
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/e46d7d8ade4dd3abf252b992a2d09e87562f1761
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Citations in the corpus
- The Dark Photon (2020, background): “In this scenario for the dark photon, as discussed in (Arias et al., 2012; Nelson and Scholtz, 2011), the mass arises via the Stueckelberg mechanism and there must be a non-minimal coupling to gravity.”
- Vector Dark Matter from Inflationary Fluctuations (2015, background): “Further, much like axions, their interactions with the standard model can be naturally very small, preventing their thermalization with the standard model plasma in the early universe [11, 12].”
- Radio for hidden-photon dark matter detection (2014, background): “Previous work [12, 13] has largely focussed on placing bounds on such particles from current experiments.”
- Search for New Physics with Atoms and Molecules (2017, background): “B.5) could conceivably constitute a substantial fraction of the DM (Arias et al., 2012; Foot and Vagnozzi, 2015; Nelson and Scholtz, 2011).”
- Any Light Particle Search II -- Technical Design Report (2013, background): “gion, accessible to the first stages of ALPS-II is naturally realized in string compactifications with intermediate string scales [50]. Also, like ALPs, HPs are a viable cold Dark Matter candidate, see [51, 28]. In addition to hidden photons, the hidden sector naturally can also contain matter (scalar”
- Dark photon dark matter produced by axion oscillations (2018, positive): “One possibility is a misalignment mechanism [24] similar to that of axions: A′ is initially displaced from the minimum”