Dark photon searches in the photon channel
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866917492033585152 |
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| author | Sierra, D. Aristizabal Betancur, A. Pohl, K. Velez, J. |
| author_facet | Sierra, D. Aristizabal Betancur, A. Pohl, K. Velez, J. |
| contents | Spectral shape differences between photons produced in $π^0\toγ+γ$ and $π^0\toγ+A_D$ may provide a new avenue for dark photon searches. Assuming 70 $μ$m thick tungsten foils separated by 200 $μ$m and a 1 GeV proton beam, we developed a GEANT4 model to estimate photon production and detection including background. Our results demonstrate that multiple campaign runs with a 10-50 $μ$A beam could probe previously unexplored regions of parameter space in models where the dark photon has predominantly invisible decays. The results are highly model independent. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_13696 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Dark photon searches in the photon channel Sierra, D. Aristizabal Betancur, A. Pohl, K. Velez, J. High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Spectral shape differences between photons produced in $π^0\toγ+γ$ and $π^0\toγ+A_D$ may provide a new avenue for dark photon searches. Assuming 70 $μ$m thick tungsten foils separated by 200 $μ$m and a 1 GeV proton beam, we developed a GEANT4 model to estimate photon production and detection including background. Our results demonstrate that multiple campaign runs with a 10-50 $μ$A beam could probe previously unexplored regions of parameter space in models where the dark photon has predominantly invisible decays. The results are highly model independent. |
| title | Dark photon searches in the photon channel |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment |
| url | https://arxiv.org/abs/2605.13696 |