Selfinteracting scalar dark matter with local Z{sub 3} symmetry
Abstract
We construct a selfinteracting scalar dark matter (DM) model with local discrete Z{sub 3} symmetry that stabilizes a weak scale scalar dark matter X. The model assumes a hidden sector with a local U(1){sub X} dark gauge symmetry, which is broken spontaneously into Z{sub 3} subgroup by nonzero VEV of dark Higgs field φ{sub X} ((φ{sub X})≠0). Compared with global Z{sub 3} DM models, the local Z{sub 3} model has two new extra fields: a dark gauge field Z{sup '} and a dark Higgs field φ (a remnant of the U(1){sub X} breaking). After imposing various constraints including the upper bounds on the spinindependent direct detection cross section and thermal relic density, we find that the scalar DM with mass less than 125 GeV is allowed in the local Z{sub 3} model, in contrary to the global Z{sub 3} model. This is due to new channels in the DM pair annihilations open into Z{sup '} and φ in the local Z{sub 3} model. Most parts of the newly open DM mass region can be probed by XENON1T and other similar future experiments. Also if φ is light enough (a few MeV ∼
 Authors:

 School of Physics, Korea Institute for Advanced Study, Seoul 130722 (Korea, Republic of)
 Publication Date:
 OSTI Identifier:
 22373551
 Resource Type:
 Journal Article
 Journal Name:
 Journal of Cosmology and Astroparticle Physics
 Additional Journal Information:
 Journal Volume: 2014; Journal Issue: 05; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 14757516
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANNIHILATION; ASTROPHYSICS; CERN LHC; CROSS SECTIONS; GAUGE INVARIANCE; GEV RANGE 1001000; HIGGS MODEL; MEV RANGE; NONLUMINOUS MATTER; SYMMETRY
Citation Formats
Ko, P., and Tang, Yong. Selfinteracting scalar dark matter with local Z{sub 3} symmetry. United States: N. p., 2014.
Web. doi:10.1088/14757516/2014/05/047.
Ko, P., & Tang, Yong. Selfinteracting scalar dark matter with local Z{sub 3} symmetry. United States. doi:10.1088/14757516/2014/05/047.
Ko, P., and Tang, Yong. Thu .
"Selfinteracting scalar dark matter with local Z{sub 3} symmetry". United States. doi:10.1088/14757516/2014/05/047.
@article{osti_22373551,
title = {Selfinteracting scalar dark matter with local Z{sub 3} symmetry},
author = {Ko, P. and Tang, Yong},
abstractNote = {We construct a selfinteracting scalar dark matter (DM) model with local discrete Z{sub 3} symmetry that stabilizes a weak scale scalar dark matter X. The model assumes a hidden sector with a local U(1){sub X} dark gauge symmetry, which is broken spontaneously into Z{sub 3} subgroup by nonzero VEV of dark Higgs field φ{sub X} ((φ{sub X})≠0). Compared with global Z{sub 3} DM models, the local Z{sub 3} model has two new extra fields: a dark gauge field Z{sup '} and a dark Higgs field φ (a remnant of the U(1){sub X} breaking). After imposing various constraints including the upper bounds on the spinindependent direct detection cross section and thermal relic density, we find that the scalar DM with mass less than 125 GeV is allowed in the local Z{sub 3} model, in contrary to the global Z{sub 3} model. This is due to new channels in the DM pair annihilations open into Z{sup '} and φ in the local Z{sub 3} model. Most parts of the newly open DM mass region can be probed by XENON1T and other similar future experiments. Also if φ is light enough (a few MeV ∼},
doi = {10.1088/14757516/2014/05/047},
journal = {Journal of Cosmology and Astroparticle Physics},
issn = {14757516},
number = 05,
volume = 2014,
place = {United States},
year = {2014},
month = {5}
}