Journal article
Measurement of J /ψ helicity distributions in inelastic photoproduction at HERA
The journal of high energy physics, Vol.2009(12), pp.7-7
12/01/2009
DOI: 10.1088/1126-6708/2009/12/007
Abstract
The J/ψ decay angular distributions have been measured in inelastic photoproduction in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 468 pb−1. The range in photon-proton centre-of-mass energy, W, was 50 < W < 180 GeV. The J/ψ mesons were identified through their decay into muon pairs. The polar and azimuthal angles of the μ+ were measured in the J/ψ rest frame and compared to theoretical predictions at leading and next-to-leading order in QCD.
Details
- Title: Subtitle
- Measurement of J /ψ helicity distributions in inelastic photoproduction at HERA
- Creators
- ZEUS CollaborationJose Repond (Contributor) - Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The journal of high energy physics, Vol.2009(12), pp.7-7
- DOI
- 10.1088/1126-6708/2009/12/007
- ISSN
- 1029-8479
- eISSN
- 1029-8479
- Language
- English
- Date published
- 12/01/2009
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627211602771