Vector meson production at HERA
- H. Niewodniczanski Inst. of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Cracow (Poland)
Exclusive {phi} electroproduction and proton-dissociative diffractive photoproduction of J/{psi} mesons has been studied in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 65 pb-1 and 112 pb-1, respectively. The {phi} cross section was measured as a function of Q2, W, t and helicity angle {theta}h in the kinematic range of 2 < Q2 < 70 GeV2, 35 < W < 145 GeV and vertical bar t vertical bar < 0.6 GeV2. The J/{psi} photoproduction cross section was measured for vertical bar t vertical bar up to 20 GeV2 in the range of 50 < W < 150 GeV as a function of vertical bar t vertical bar and W. Both measurements are compared to other vector meson cross sections and predictions from theoretical models.
- OSTI ID:
- 20726469
- Journal Information:
- AIP Conference Proceedings, Vol. 792, Issue 1; Conference: DIS 2005: 13. international workshop on deep inelastic scattering, Madison, WI (United States), 27 Apr - 1 May 2005; Other Information: DOI: 10.1063/1.2122066; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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