First search for $K^+\toπ^0πμe$ decays
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866913573474664448 |
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| author | NA62 collaboration |
| author_facet | NA62 collaboration |
| contents | The first search for the lepton number violating decay $K^+\toπ^0π^-μ^+e^+$ and lepton flavour violating decays $K^+\toπ^0π^+μ^-e^+$, $K^+\toπ^0π^+μ^+e^-$ has been performed using a dataset collected by the NA62 experiment at CERN in 2016-2018. Upper limits of $2.9\times 10^{-10}$, $3.1\times 10^{-10}$ and $5.0\times 10^{-10}$, respectively, are obtained at 90% CL for the branching ratios of the three decays on the assumption of uniform phase-space distributions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_12981 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | First search for $K^+\toπ^0πμe$ decays NA62 collaboration High Energy Physics - Experiment The first search for the lepton number violating decay $K^+\toπ^0π^-μ^+e^+$ and lepton flavour violating decays $K^+\toπ^0π^+μ^-e^+$, $K^+\toπ^0π^+μ^+e^-$ has been performed using a dataset collected by the NA62 experiment at CERN in 2016-2018. Upper limits of $2.9\times 10^{-10}$, $3.1\times 10^{-10}$ and $5.0\times 10^{-10}$, respectively, are obtained at 90% CL for the branching ratios of the three decays on the assumption of uniform phase-space distributions. |
| title | First search for $K^+\toπ^0πμe$ decays |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2409.12981 |