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New stellar constraints on dark photons

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TLDR
In this article, the stellar production of vector states V within the minimal model of "dark photons" was studied and it was shown that when the Stuckelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as κ 2 m V 2, where κ and m V are the mixing angle with the photon and the mass of a dark state.
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This article is published in Physics Letters B.The article was published on 2013-10-01 and is currently open access. It has received 294 citations till now. The article focuses on the topics: Dark photon & Dark state.

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Light dark matter: Models and constraints

TL;DR: In this article, the authors study the direct detection prospects for a representative set of simplified models of sub-GeV dark matter (DM), accounting for existing terrestrial, astrophysical and cosmological constraints.
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Supernova 1987A Constraints on Sub-GeV Dark Sectors, Millicharged Particles, the QCD Axion, and an Axion-like Particle

TL;DR: In this article, the authors considered a model with a fermion coupled to a dark photon, with various mass relations in the dark sector, and showed that the PQ scale of the axion-like particle can be bounded to a few times 10^4 and 10^8 GeV.
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Supernova 1987A constraints on sub-GeV dark sectors, millicharged particles, the QCD axion, and an axion-like particle

TL;DR: In this article, the authors consider a model with a fermion coupled to a dark photon, with various mass relations in the dark sector, and derive a diagnostic for assessing when such a particle is trapped at large mixing angles.
References
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Journal ArticleDOI

Two U(1)'s and Epsilon Charge Shifts

TL;DR: If new particles are gauged by a new U(1) then their electromagnetic charges may be shifted by a calculable amount as mentioned in this paper, which is the case in the case of the current article.
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A theory of dark matter

TL;DR: In this paper, the authors proposed a light boson invoked by XDM to mediate a large inelastic scattering cross section for the DAMA annual modulation signal at low velocities at redshift, which could produce observable effects on the ionization history of the universe.
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Secluded WIMP Dark Matter

TL;DR: In this article, a generic mechanism via which thermal relic WIMP dark matter may be decoupled from the Standard Model, namely through a combination of WIMPs annihilation to metastable mediators with subsequent delayed decay to Standard Model states, is considered.
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The Low-Energy Frontier of Particle Physics

TL;DR: Most embeddings of the Standard Model into a more unified theory, in particular those based on supergravity or superstrings, predict the existence of a hidden sector of particles that have only very weak interactions with visible-sector Standard Model particles.
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WISPy cold dark matter

TL;DR: Very weakly interacting slim particles (WISPs) such as axion-like particles (ALPs) or hidden photons (HPs), may be non-thermally produced via the misalignment mechanism in the early universe and survive as a cold dark matter population until today as mentioned in this paper.
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