Formation of true muonium in the Drell-Yan dimuon production
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915179850104832 |
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| author | Gninenko, Sergei N. Kuleshov, Sergey Lyubovitskij, Valery E. Zhevlakov, Alexey S. |
| author_facet | Gninenko, Sergei N. Kuleshov, Sergey Lyubovitskij, Valery E. Zhevlakov, Alexey S. |
| contents | We suggest a new mechanism for the formation of true muonium ($T\!M$), the QED $(μ^+ μ^-)$ bound state, due to the Coulomb interaction of muons from $μ^+ μ^-$ pairs generated in the Drell-Yan reaction of protons off nuclei of a thin foil target. The $T\!M$ atoms produced in the $^3S_1$ long-lived triplet state ($oT\!M$) could escape from the foil to vacuum followed by their decay into $e^+e^-$ pairs. Observation of $e^+e^-$ events with a displaced vertex, and an invariant mass and decay time consistent with the mass and lifetime of the $oT\!M$ is used as a signature of the discovery of $T\!M$. We present estimates of the $T\!M$ yield and briefly discuss an experiment which could lead to such a discovery. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_01393 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Formation of true muonium in the Drell-Yan dimuon production Gninenko, Sergei N. Kuleshov, Sergey Lyubovitskij, Valery E. Zhevlakov, Alexey S. High Energy Physics - Phenomenology We suggest a new mechanism for the formation of true muonium ($T\!M$), the QED $(μ^+ μ^-)$ bound state, due to the Coulomb interaction of muons from $μ^+ μ^-$ pairs generated in the Drell-Yan reaction of protons off nuclei of a thin foil target. The $T\!M$ atoms produced in the $^3S_1$ long-lived triplet state ($oT\!M$) could escape from the foil to vacuum followed by their decay into $e^+e^-$ pairs. Observation of $e^+e^-$ events with a displaced vertex, and an invariant mass and decay time consistent with the mass and lifetime of the $oT\!M$ is used as a signature of the discovery of $T\!M$. We present estimates of the $T\!M$ yield and briefly discuss an experiment which could lead to such a discovery. |
| title | Formation of true muonium in the Drell-Yan dimuon production |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2503.01393 |