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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.17914 |
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| _version_ | 1866913670783565824 |
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| author | Dias, Alex G. Kannike, Kristjan Koivunen, Niko Leite, Júlio Padovani, Vinícius Sánchez-Vega, B. L. |
| author_facet | Dias, Alex G. Kannike, Kristjan Koivunen, Niko Leite, Júlio Padovani, Vinícius Sánchez-Vega, B. L. |
| contents | We propose a scale-invariant model with the 3-3-1-1 gauge symmetry that features universal seesaw for all fermion masses. The discrete remnant of the gauge group, the matter parity, stabilizes a fermionic dark matter candidate. The scalar sector contains two triplets, the minimum number to break the 3-3-1 symmetry, and two scalar singlets. With the help of additional vector-like quarks, the universal implementation of the see-saw mechanism across all fermion sectors provides a partial explanation for the observed hierarchy of masses for charged leptons, neutrinos, and quarks. We identify the lightest $ P_M $-odd fermion, $ f_\mathrm{d} $, as a viable dark matter candidate. This fermion satisfies the relic density constraint and the spin-independent constraints within the mass range $ 160 \, \textrm{GeV} \lesssim m_{f_\mathrm{d}} \lesssim 520$ GeV . This range depends on the symmetry-breaking scale $ v_χ$ with a lower bound $ v_χ\gtrsim 3.6$ TeV due to LEP bounds on the $ ρ_0 $ parameter. Spin-independent scattering cross-sections for $ f_\mathrm{d} $ align with experimental limits from LZ and PandaX-4T, with some regions of the parameter space nearing the sensitivity of upcoming experiments, such as XLZD and PandaX-xT, which offers promising opportunities for detection. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_17914 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dark matter in the scale-invariant 3-3-1-1 model Dias, Alex G. Kannike, Kristjan Koivunen, Niko Leite, Júlio Padovani, Vinícius Sánchez-Vega, B. L. High Energy Physics - Phenomenology We propose a scale-invariant model with the 3-3-1-1 gauge symmetry that features universal seesaw for all fermion masses. The discrete remnant of the gauge group, the matter parity, stabilizes a fermionic dark matter candidate. The scalar sector contains two triplets, the minimum number to break the 3-3-1 symmetry, and two scalar singlets. With the help of additional vector-like quarks, the universal implementation of the see-saw mechanism across all fermion sectors provides a partial explanation for the observed hierarchy of masses for charged leptons, neutrinos, and quarks. We identify the lightest $ P_M $-odd fermion, $ f_\mathrm{d} $, as a viable dark matter candidate. This fermion satisfies the relic density constraint and the spin-independent constraints within the mass range $ 160 \, \textrm{GeV} \lesssim m_{f_\mathrm{d}} \lesssim 520$ GeV . This range depends on the symmetry-breaking scale $ v_χ$ with a lower bound $ v_χ\gtrsim 3.6$ TeV due to LEP bounds on the $ ρ_0 $ parameter. Spin-independent scattering cross-sections for $ f_\mathrm{d} $ align with experimental limits from LZ and PandaX-4T, with some regions of the parameter space nearing the sensitivity of upcoming experiments, such as XLZD and PandaX-xT, which offers promising opportunities for detection. |
| title | Dark matter in the scale-invariant 3-3-1-1 model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.17914 |