Inelastic extra charged scalar dark matter
Abstract
The null results in dark matter direct detection experiments imply the present scalar dark matter (DM) annihilation cross section to bottom quark pairs through the Higgs boson exchange is smaller than about 10₋31 cm3 /s for a wide DM mass range, which is much smaller than the required annihilation cross section for thermal relic DM. We propose models of a thermal relic DM with the present annihilation cross section being very suppressed. This property can be realized in an extra $$\textit{U}$$(1) gauge interacting complex scalar DM, where the thermal DM abundance is determined by coannihilation through the gauge interaction while the present annihilation is governed by Higgs bosons exchange processes. An interaction between DM and the extra $$\textit{U}$$(1) breaking Higgs field generates a small mass splitting between DM and its coannihilating partner so that coannihilation becomes possible and also the Z' -mediated scattering off with a nucleon in direct DM search becomes inelastic. We consider scalar dark matter in $$U(1)_{B₋L}, U(1)_{(B₋L)_3}$$ and $$4U(1)_{L_μ₋L_τ}$$ extended models and identify viable parameter regions. We also discuss various implications to future DM detection experiments, the DM interpretation of the gamma-ray excess in the globular cluster 47 Tucanae, the muon anomalous magnetic moment, the Hubble tension and others.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Alabama, Tuscaloosa, AL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); Japan Society for the Promotion of Science (JSPS)
- OSTI Identifier:
- 1594206
- Alternate Identifier(s):
- OSTI ID: 1802347
- Grant/Contract Number:
- SC0012447; 19K03860; 19H05091; 19K03865
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 2; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Astronomy & Astrophysics; Physics
Citation Formats
Okada, Nobuchika, and Seto, Osamu. Inelastic extra U ( 1 ) charged scalar dark matter. United States: N. p., 2020.
Web. doi:10.1103/PhysRevD.101.023522.
Okada, Nobuchika, & Seto, Osamu. Inelastic extra U ( 1 ) charged scalar dark matter. United States. https://doi.org/10.1103/PhysRevD.101.023522
Okada, Nobuchika, and Seto, Osamu. Fri .
"Inelastic extra U ( 1 ) charged scalar dark matter". United States. https://doi.org/10.1103/PhysRevD.101.023522.
@article{osti_1594206,
title = {Inelastic extra U ( 1 ) charged scalar dark matter},
author = {Okada, Nobuchika and Seto, Osamu},
abstractNote = {The null results in dark matter direct detection experiments imply the present scalar dark matter (DM) annihilation cross section to bottom quark pairs through the Higgs boson exchange is smaller than about 10₋31 cm3 /s for a wide DM mass range, which is much smaller than the required annihilation cross section for thermal relic DM. We propose models of a thermal relic DM with the present annihilation cross section being very suppressed. This property can be realized in an extra $\textit{U}$(1) gauge interacting complex scalar DM, where the thermal DM abundance is determined by coannihilation through the gauge interaction while the present annihilation is governed by Higgs bosons exchange processes. An interaction between DM and the extra $\textit{U}$(1) breaking Higgs field generates a small mass splitting between DM and its coannihilating partner so that coannihilation becomes possible and also the Z' -mediated scattering off with a nucleon in direct DM search becomes inelastic. We consider scalar dark matter in $U(1)_{B₋L}, U(1)_{(B₋L)_3}$ and $4U(1)_{L_μ₋L_τ}$ extended models and identify viable parameter regions. We also discuss various implications to future DM detection experiments, the DM interpretation of the gamma-ray excess in the globular cluster 47 Tucanae, the muon anomalous magnetic moment, the Hubble tension and others.},
doi = {10.1103/PhysRevD.101.023522},
journal = {Physical Review D},
number = 2,
volume = 101,
place = {United States},
year = {2020},
month = {1}
}
https://doi.org/10.1103/PhysRevD.101.023522
Web of Science
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