Article ; Online: Precise Measurement of the D_{s}^{+} Lifetime at Belle II.
2023 Volume 131, Issue 17, Page(s) 171803
Abstract: ... by the Belle II experiment running at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The lifetime is ... We measure the lifetime of the D_{s}^{+} meson using a data sample of 207 fb^{-1} collected ... determined by fitting the decay-time distribution of a sample of 116×10^{3} D_{s}^{+}→ϕπ^{+} decays ...
Abstract | We measure the lifetime of the D_{s}^{+} meson using a data sample of 207 fb^{-1} collected by the Belle II experiment running at the SuperKEKB asymmetric-energy e^{+}e^{-} collider. The lifetime is determined by fitting the decay-time distribution of a sample of 116×10^{3} D_{s}^{+}→ϕπ^{+} decays. Our result is τ_{D_{s}^{+}}=(499.5±1.7±0.9) fs, where the first uncertainty is statistical and the second is systematic. This result is significantly more precise than previous measurements. |
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Language | English |
Publishing date | 2023-11-13 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 208853-8 |
ISSN | 1079-7114 ; 0031-9007 |
ISSN (online) | 1079-7114 |
ISSN | 0031-9007 |
DOI | 10.1103/PhysRevLett.131.171803 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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