Neutrino Portal to Freeze-in Dark Matter

P. S. Bhupal Dev

doi:10.31526/LHEP.2022.356

Neutrino Portal to Freeze-in Dark Matter

P. S. Bhupal Dev

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate the possibility of probing freeze-in dark matter (DM) produced via the heavy neutral lepton (HNL) portal at the HNL frontier within the framework of the type-I seesaw. We consider two cases for the DM production either via decay of the thermal HNL or via scattering of the bath particles mediated by the HNL. In both cases, we show that the allowed model parameter space satisfying the observed DM relic density for the freeze-in scenario remains within reach of several HNL search experiments.

Original language	English
Article number	356
Journal	Letters in High Energy Physics
Volume	2022
DOIs	https://doi.org/10.31526/LHEP.2022.356
State	Published - 2022

Keywords

dark matter
HNL frontier
neutrino

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10.31526/LHEP.2022.356

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title = "Neutrino Portal to Freeze-in Dark Matter",

abstract = "We investigate the possibility of probing freeze-in dark matter (DM) produced via the heavy neutral lepton (HNL) portal at the HNL frontier within the framework of the type-I seesaw. We consider two cases for the DM production either via decay of the thermal HNL or via scattering of the bath particles mediated by the HNL. In both cases, we show that the allowed model parameter space satisfying the observed DM relic density for the freeze-in scenario remains within reach of several HNL search experiments.",

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year = "2022",

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PY - 2022

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N2 - We investigate the possibility of probing freeze-in dark matter (DM) produced via the heavy neutral lepton (HNL) portal at the HNL frontier within the framework of the type-I seesaw. We consider two cases for the DM production either via decay of the thermal HNL or via scattering of the bath particles mediated by the HNL. In both cases, we show that the allowed model parameter space satisfying the observed DM relic density for the freeze-in scenario remains within reach of several HNL search experiments.

AB - We investigate the possibility of probing freeze-in dark matter (DM) produced via the heavy neutral lepton (HNL) portal at the HNL frontier within the framework of the type-I seesaw. We consider two cases for the DM production either via decay of the thermal HNL or via scattering of the bath particles mediated by the HNL. In both cases, we show that the allowed model parameter space satisfying the observed DM relic density for the freeze-in scenario remains within reach of several HNL search experiments.

KW - dark matter

KW - HNL frontier

KW - neutrino

UR - https://www.scopus.com/pages/publications/85147454298

U2 - 10.31526/LHEP.2022.356

DO - 10.31526/LHEP.2022.356

M3 - Article

AN - SCOPUS:85147454298

SN - 2632-2714

VL - 2022

JO - Letters in High Energy Physics

JF - Letters in High Energy Physics

M1 - 356

ER -

Neutrino Portal to Freeze-in Dark Matter

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Keywords

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