Publication: Observation of πK-atoms with DIRAC-II
Observation of πK-atoms with DIRAC-II
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Allkofer, Y. (2009). Observation of πK-atoms with DIRAC-II. Hyperfine Interactions, 193(1–3), 39–45. https://doi.org/10.1007/s10751-009-0067-9
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We present evidence for the first observation of electromagnetically bound π ± K ∓ -pairs (πK-atoms) with the DIRAC-II experiment at the CERN-PS. The πK-atoms are produced by the 24 GeV/c proton beam in a thin Pt-target and the dissociated π ± and K ∓ -mesons analyzed in a two-arm magnetic spectrometer. The observed enhancement at low relative momentum corresponds to the production of 173±54 πK-atoms. The mean life of πK-atoms is related to the s-wave πK-scattering lengths. From these first data we derive a lower limit for the
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- Allkofer, Y
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Allkofer, Y. (2009). Observation of πK-atoms with DIRAC-II. Hyperfine Interactions, 193(1–3), 39–45. https://doi.org/10.1007/s10751-009-0067-9
