Coleman-Weinberg dynamics of ultralight scalar dark matter and GeV-scale right-handed neutrinos

被引：1

作者：

Murgui, Clara ^{[1
]}

Plestid, Ryan ^{[1
]}

机构：

[1] CALTECH, Walter Burke Inst Theoret Phys, 1200 East Calif Blvd, Pasadena, CA 91125 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 08期

基金：

美国国家科学基金会;

关键词：

Early Universe Particle Physics; Models for Dark Matter; New Light Particles; Sterile or Heavy Neutrinos; MASS; TEMPERATURE; SYMMETRY;

D O I：

10.1007/JHEP08(2024)168

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We consider an extension of the Standard Model by three singlet fermions and one singlet real scalar field. The scalar is an ultralight dark matter candidate whose abundance is set by dynamically induced misalignment from the Higgs portal. We focus on parameter space where the Coleman-Weinberg potential both fixes the dark matter relic abundance, and predicts the mass scale of right-handed neutrinos. The model prefers scalar masses in the range of 10 mu eV less than or similar to m(phi) less than or similar to 10 meV, and can be tested via direct searches for a light scalar (e.g. fifth force tests), or by searching for right-handed neutrinos in laboratory experiments.

引用

页数：26

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