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most citedConstraints on freeze-in dark matter from Lyman- forest and 21-cm signal : single-field models

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hep-ph2024★ 6 cited

Constraints on freeze-in dark matter from Lyman- forest and 21-cm signal : single-field models

Zixuan Xu, Quan Zhou, Sibo Zheng

We report new Lyman- and 21-cm constraints on freeze-in dark matter (FIDM) which injects energy into the intergalactic medium either through annihilation or decay to photon(s) o…