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- W2019974709 abstract "The measured densities of dark and baryonic matter are surprisingly close to each other, even though the baryon asymmetry and the dark matter are usually explained by unrelated mechanisms. We consider a scenario where the dark matter $S$ is produced nonthermally from the decay of a messenger particle $X$, which carries the baryon number and compensates for the baryon asymmetry in the Universe, thereby establishing a connection between the baryonic and dark matter densities. We propose a simple model to realize this scenario, adding only a light singlet fermion $S$ and a colored particle $X$ which could have a mass in the $mathcal{O}$(TeV) range and a lifetime to appear long-lived in collider detector. Therefore in hadron colliders the signal is similar to that of a stable or long-lived gluino in supersymmetric models." @default.
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- W2019974709 date "2005-01-13" @default.
- W2019974709 modified "2023-10-02" @default.
- W2019974709 title "Dark matter from baryon asymmetry" @default.
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- W2019974709 doi "https://doi.org/10.1103/physrevd.71.023510" @default.
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