Comparative analysis of ω p , ϕ p , and J / ψ p scattering lengths from A2, CLAS, and GlueX threshold measurements
The high accuracy Φ-meson photoproduction data from the CLAS experiment in Hall B of Jefferson Laboratory allow us to determine the near-threshold total cross section of the γp →Φp reaction and use it for evaluating the Φp scattering length αΦp. These data result in an absolute value of |αΦp| = ( 0....
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| Veröffentlicht in: | Physical review. C 2020-04, Vol.101 (4) |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | The high accuracy Φ-meson photoproduction data from the CLAS experiment in Hall B of Jefferson Laboratory allow us to determine the near-threshold total cross section of the γp →Φp reaction and use it for evaluating the Φp scattering length αΦp. These data result in an absolute value of |αΦp| = ( 0.063 ± 0.010 ) fm, which is smaller than the typical hadron size. A comparative analysis of αΦp with the previously determined scattering lengths for ωp and J/ψp from the A2 and GlueX experiments is performed. |
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| ISSN: | 2469-9985 2469-9993 |