W-boson mass anomaly and vacuum structure in vector dark matter model with a singlet scalar mediator
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| Format: | Preprint |
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2022
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| _version_ | 1866916147856670720 |
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| author | Ayazi, Seyed Yaser Hosseini, Mojtaba |
| author_facet | Ayazi, Seyed Yaser Hosseini, Mojtaba |
| contents | Motivated by the deviation of the W boson mass reported by the CDF collaboration, we study an extension of the Standard Model (SM) including a vector dark matter (VDM) candidate and a scalar mediator. In the model, the one-loop corrections induced by the new scalar, shift the W boson mass. We identify the parameter space of the model consistent with dark matter (DM) relic abundance, W mass boson anomaly, invisible Higgs decay at LHC, and direct detection of DM. It is shown that the W-mass anomaly can be explained for the large part of parameter space of VDM mass and scalar mediator mass between $100-124~\rm GeV$ by the model. We also investigate the renormalization group equations (RGE) at one-loop order for the model. We show that the contribution of new scalar mediator to RGE, guarantees positivity and vacuum stability of SM Higgs up to Planck scale. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2206_11041 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | W-boson mass anomaly and vacuum structure in vector dark matter model with a singlet scalar mediator Ayazi, Seyed Yaser Hosseini, Mojtaba High Energy Physics - Phenomenology Motivated by the deviation of the W boson mass reported by the CDF collaboration, we study an extension of the Standard Model (SM) including a vector dark matter (VDM) candidate and a scalar mediator. In the model, the one-loop corrections induced by the new scalar, shift the W boson mass. We identify the parameter space of the model consistent with dark matter (DM) relic abundance, W mass boson anomaly, invisible Higgs decay at LHC, and direct detection of DM. It is shown that the W-mass anomaly can be explained for the large part of parameter space of VDM mass and scalar mediator mass between $100-124~\rm GeV$ by the model. We also investigate the renormalization group equations (RGE) at one-loop order for the model. We show that the contribution of new scalar mediator to RGE, guarantees positivity and vacuum stability of SM Higgs up to Planck scale. |
| title | W-boson mass anomaly and vacuum structure in vector dark matter model with a singlet scalar mediator |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2206.11041 |