The 95 GeV Excess in the Georgi-Machacek Model: Single or Twin Peak Resonance
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arXiv
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| Formato: | Preprint |
| Publicado: |
2023
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| _version_ | 1866929454777892864 |
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| author | Ahriche, Amine |
| author_facet | Ahriche, Amine |
| contents | In this work, we investigate the possibility to address the excess observed around 95 GeV in the $γγ$, $ττ$, and $b\bar{b}$ channels as a scalar resonance(s) within the Georgi-Machacek (GM) model. In our analysis, we find that the excess can be easily accommodated in the channels ($γγ$ and $b\bar{b}$) simultaneously, where the 95 GeV candidate is a single peak resonance (SPR) due to a light CP-even scalar. We found that the excess in the $ττ$ channel can be addressed simultaneously with $γγ$ and $b\bar{b}$ only if the 95 GeV candidate is a twin peak resonance (TPR), i.e., another CP-odd scalar in addition to the CP-even scalar. We demonstrate that the nature of the 95 GeV scalar resonance candidate (SPR or TPR) can be probed via the properties of its di-$τ$ decay. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_10484 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The 95 GeV Excess in the Georgi-Machacek Model: Single or Twin Peak Resonance Ahriche, Amine High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory In this work, we investigate the possibility to address the excess observed around 95 GeV in the $γγ$, $ττ$, and $b\bar{b}$ channels as a scalar resonance(s) within the Georgi-Machacek (GM) model. In our analysis, we find that the excess can be easily accommodated in the channels ($γγ$ and $b\bar{b}$) simultaneously, where the 95 GeV candidate is a single peak resonance (SPR) due to a light CP-even scalar. We found that the excess in the $ττ$ channel can be addressed simultaneously with $γγ$ and $b\bar{b}$ only if the 95 GeV candidate is a twin peak resonance (TPR), i.e., another CP-odd scalar in addition to the CP-even scalar. We demonstrate that the nature of the 95 GeV scalar resonance candidate (SPR or TPR) can be probed via the properties of its di-$τ$ decay. |
| title | The 95 GeV Excess in the Georgi-Machacek Model: Single or Twin Peak Resonance |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2312.10484 |