Résumé
A search for the rare decay (Formula presented) is reported using proton-proton collision events at (Formula presented) collected by the CMS detector in 2022-2023, corresponding to an integrated luminosity of (Formula presented). This is the first analysis to use a newly developed inclusive dimuon trigger, expanding the scope of the CMS flavor physics program. The search uses (Formula presented) mesons obtained from (Formula presented) decays. No significant excess is observed. A limit on the branching fraction of (Formula presented) at 95% confidence level is set. This is the most stringent upper limit set on any flavor changing neutral current decay in the charm sector.
| langue originale | Anglais |
|---|---|
| Numéro d'article | 151803 |
| journal | Physical Review Letters |
| Volume | 135 |
| Numéro de publication | 15 |
| Les DOIs | |
| état | Publié - 10 oct. 2025 |
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