Journal article
Measurement of exclusive omega electroproduction at HERA
Physics letters. B, Vol.487(3-4), pp.273-288
08/17/2000
DOI: 10.1016/S0370-2693(00)00794-2
Abstract
The exclusive electroproduction of omega mesons, ep --> e omega p, has been studied in the kinematic range 3 < Q(2) < 20 GeV2, 40 < W< 120 GeV and /t/ < 0.6 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 37.7 pb(-1). The omega mesons were identified via the decay omega --> pi(+)pi(-)pi(0). The exclusive cross section in the above kinematic region is sigma(ep-->e omega p) = 0.108 +/- 0.014(stat.) +/- 0.026(syst.) nb. The reaction ep --> e phi p, phi --> pi(+)pi(-)pi(0), has also been measured. The cross sections, as well as the ratios sigma(gamma)(.) (p --> omega p)/sigma(gamma)(.) (0)(-->rho)(p) and sigma(gamma)(.) (p -->omega p)/sigma(gamma)(.) (p -->phi p), are presented as a function of w and Q(2) Thus, for the first time, the properties of omega electroproduction can be compared to those of rho(0),phi and J/psi electroproduction at high W. (C) 2000 Elsevier Science B.V. All rights reserved.
Details
- Title: Subtitle
- Measurement of exclusive omega electroproduction at HERA
- Creators
- ZEUS CollaborationJ Repond (Contributor)U Mallik (Contributor)
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.487(3-4), pp.273-288
- DOI
- 10.1016/S0370-2693(00)00794-2
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier
- Number of pages
- 16
- Language
- English
- Date published
- 08/17/2000
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627331602771
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