The $U(1)_{L_μ-L_τ}$ breaking phase transition, muon $g-2$, dark matter, collider and gravitational wave
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866913224103821312 |
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| author | Wang, Jie Ma, Jinghong Gao, Jing Han, Xiao-Fang Wang, Lei |
| author_facet | Wang, Jie Ma, Jinghong Gao, Jing Han, Xiao-Fang Wang, Lei |
| contents | Combining the dark matter and muon $g-2$ anomaly, we study the $U(1)_{L_μ-L_τ}$ breaking phase transition, gravitational wave spectra, and the direct detection at the LHC in an extra $U(1)_{L_μ-L_τ}$ gauge symmetry extension of the standard model. The new fields includes vector-like leptons ($E_1,~ E_2,~ N$), $U(1)_{L_μ-L_τ}$ breaking scalar $S$ and gauge boson $Z'$, as well as the dark matter candidate $X_I$ and its heavy partner $X_R$. A joint explanation of the dark matter relic density and muon $g-2$ anomaly excludes the region where both $min(m_{E_1},m_{E_2},m_N,m_{X_R})$ and $min(m_{Z'},m_S)$ are much larger than $m_{X_I}$. In the parameter space accommodating the DM relic density and muon $g-2$ anomaly, the model can achieve a first order $U(1)_{L_μ-L_τ}$ breaking phase transition, whose strength is sensitive to the parameters of Higgs potential. The corresponding gravitational wave spectra can reach the sensitivity of U-DECIGO. In addition, the direct searches at the LHC impose stringent bound on the mass spectra of the vector-like leptons and dark matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_09210 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The $U(1)_{L_μ-L_τ}$ breaking phase transition, muon $g-2$, dark matter, collider and gravitational wave Wang, Jie Ma, Jinghong Gao, Jing Han, Xiao-Fang Wang, Lei High Energy Physics - Phenomenology Combining the dark matter and muon $g-2$ anomaly, we study the $U(1)_{L_μ-L_τ}$ breaking phase transition, gravitational wave spectra, and the direct detection at the LHC in an extra $U(1)_{L_μ-L_τ}$ gauge symmetry extension of the standard model. The new fields includes vector-like leptons ($E_1,~ E_2,~ N$), $U(1)_{L_μ-L_τ}$ breaking scalar $S$ and gauge boson $Z'$, as well as the dark matter candidate $X_I$ and its heavy partner $X_R$. A joint explanation of the dark matter relic density and muon $g-2$ anomaly excludes the region where both $min(m_{E_1},m_{E_2},m_N,m_{X_R})$ and $min(m_{Z'},m_S)$ are much larger than $m_{X_I}$. In the parameter space accommodating the DM relic density and muon $g-2$ anomaly, the model can achieve a first order $U(1)_{L_μ-L_τ}$ breaking phase transition, whose strength is sensitive to the parameters of Higgs potential. The corresponding gravitational wave spectra can reach the sensitivity of U-DECIGO. In addition, the direct searches at the LHC impose stringent bound on the mass spectra of the vector-like leptons and dark matter. |
| title | The $U(1)_{L_μ-L_τ}$ breaking phase transition, muon $g-2$, dark matter, collider and gravitational wave |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2309.09210 |