LHC di-lepton searches for $Z^\prime$ bosons which explain measurements of $b \rightarrow s l^+l^-$ transitions
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866912075380424704 |
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| author | Allanach, Ben |
| author_facet | Allanach, Ben |
| contents | Several current measurements of $b \rightarrow s l^+ l^-$ processes are in tension with Standard Model predictions, whereas others (e.g.\ $R_K$ and $R_{K^\ast}$) are in reasonable agreement with them. We examine some recent $Z^\prime$ models that fit the data as a whole appreciably better than does the Standard Model, confronting the models with ATLAS resonance searches in the $e^+e^-$ and $μ^+μ^-$ channels. Both channels constrain the models; we find that the searches rule out less than one fifth of the allowed range of $M_{Z^\prime}$. We estimate that the HL-LHC can roughly double the current sensitivity in $M_{Z^\prime}$, but covering the whole parameter space would take a more powerful machine, such as a 100 TeV $pp$ collider. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_14748 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | LHC di-lepton searches for $Z^\prime$ bosons which explain measurements of $b \rightarrow s l^+l^-$ transitions Allanach, Ben High Energy Physics - Phenomenology High Energy Physics - Experiment Several current measurements of $b \rightarrow s l^+ l^-$ processes are in tension with Standard Model predictions, whereas others (e.g.\ $R_K$ and $R_{K^\ast}$) are in reasonable agreement with them. We examine some recent $Z^\prime$ models that fit the data as a whole appreciably better than does the Standard Model, confronting the models with ATLAS resonance searches in the $e^+e^-$ and $μ^+μ^-$ channels. Both channels constrain the models; we find that the searches rule out less than one fifth of the allowed range of $M_{Z^\prime}$. We estimate that the HL-LHC can roughly double the current sensitivity in $M_{Z^\prime}$, but covering the whole parameter space would take a more powerful machine, such as a 100 TeV $pp$ collider. |
| title | LHC di-lepton searches for $Z^\prime$ bosons which explain measurements of $b \rightarrow s l^+l^-$ transitions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2404.14748 |