Diffractive electromagnetic processes from a Regge point of view
The energy dependence of the cross sections for electromagnetic diffractive processes can be well described by a single power, Wδ. For J/ψ photoproduction this holds in the range from 20 GeV to 2 TeV. This feature is most easily explained by a single pole in the angular momentum plane which depends...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
3 August 2015
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2015, Jahrgang: 92, Heft: 3 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.92.034002 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevD.92.034002 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.92.034002 
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| Verfasserangaben: | H.G. Dosch, E. Ferreira |
| Zusammenfassung: | The energy dependence of the cross sections for electromagnetic diffractive processes can be well described by a single power, Wδ. For J/ψ photoproduction this holds in the range from 20 GeV to 2 TeV. This feature is most easily explained by a single pole in the angular momentum plane which depends on the scale of the process, at least in a certain range of values of the momentum transfer. It is shown that this assumption allows a unified description of all electromagnetic elastic diffractive processes. We also discuss an alternative model with an energy-dependent dipole cross section, which is compatible with the data up to 2 TeV and which shows an energy behavior typical for a cut in the angular momentum plane. |
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| Beschreibung: | Gesehen am 25.06.2020 |
| Beschreibung: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.92.034002 |