Elastic and proton-dissociative photoproduction of J/ψ mesons at HERA
Cross sections for elastic and proton-dissociative photoproduction of J/ψ mesons are measured with the H1 detector in positron-proton collisions at HERA. The data were collected at ep centre-of-mass energies s√≈318 GeV and s√≈225 GeV, corresponding to integrated luminosities of L=130 pb−1 and L=10.8...
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| Hauptverfasser: | , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
15 June 2013
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| In: |
The European physical journal. C, Particles and fields
Year: 2013, Jahrgang: 73, Pages: 1-17 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-013-2466-y |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-013-2466-y
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| Verfasserangaben: | The H1 Collaboration: C. Alexa, A. Buniatyan, V. Dodonov, E. Hennekemper, M. Herbst, F. Huber, H. Pirumov, M. Sauter, A. Schöning, H.-C. Schultz-Coulon und weitere 163 |
| Zusammenfassung: | Cross sections for elastic and proton-dissociative photoproduction of J/ψ mesons are measured with the H1 detector in positron-proton collisions at HERA. The data were collected at ep centre-of-mass energies s√≈318 GeV and s√≈225 GeV, corresponding to integrated luminosities of L=130 pb−1 and L=10.8 pb−1, respectively. The cross sections are measured as a function of the photon-proton centre-of-mass energy in the range 25<W γp <110 GeV. Differential cross sections dσ/dt, where t is the squared four-momentum transfer at the proton vertex, are measured in the range |t|<1.2 GeV2 for the elastic process and |t|<8 GeV2 for proton dissociation. The results are compared to other measurements. The W γp and t-dependences are parametrised using phenomenological fits. |
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| Beschreibung: | Gesehen am 11.05.2013 |
| Beschreibung: | Online Resource |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-013-2466-y |