Freeze-in bino dark matter in high scale supersymmetry

2023/08/28 by Chengcheng Han, Pei Wu, Han, Chengcheng +5 · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.2308.14438

openalex publication_date 2023/08/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We explore a scenario of high scale supersymmetry where all supersymmetric particles except gauginos stay at a high energy scale M_{\rm SUSY} which is much larger than the reheating temperature T_RH. The dark matter is dominated by bino component with mass around the electroweak scale and the observed relic abundance is mainly generated by the freeze-in process during the early universe. Considering the various constraints, we identify two available scenarios in which the supersymmetric sector at an energy scale below T_RH consists of: a) bino; b) bino and wino. Typically, for a bino mass around 0.1-1 TeV and a wino mass around 2 TeV, we find that M_{\rm SUSY} should be around 10^12-14 GeV with T_RH around 10^4-6 GeV.

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