Journal article
Charged particles and neutral kaons in photoproduced jets at HERA
The European physical journal. C, Particles and fields, Vol.2(1), pp.77-93
03/01/1998
DOI: 10.1007/PL00021563
Abstract
Charged particles (h±) and K0 mesons have been studied in photoproduced events containing at least one jet of ET > 8 GeV n a pseudorapidity interval (-0.5, 0.5) in the ZEUS laboratory frame. Distributions are presented in terms of transverse momentum, pseudorapidity and distance of the particle from the axis of a jet. The properties of h± within the jet are described well using the standard settings of PYTHIA, but the use of the multiparton interaction option improves the description outside the jets. A reasonable overall description of the K0 behaviour is possible with PYTHIA using a reduced value of the strangeness suppression parameter. The numbers of h± and K0 within a jet as defined above are measured to be 3.25 ± 0.02 ± 0.28 and 0.431 ± 0.013 ± 0.088 respectively. Fragmentation functions are presented for h± and K0 in photoproduced jets; agreement is found with calculations of Binnewies et al. and, at higher momenta, with pp¯ scattering and with standard PYTHIA. Fragmentation functions in direct photoproduced events are extracted, and at higher momenta give good agreement with data from related processes in e+e− annihilation and deep inelastic ep scattering
Details
- Title: Subtitle
- Charged particles and neutral kaons in photoproduced jets at HERA
- Creators
- ZEUS CollaborationJose Repond (Contributor) - Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- The European physical journal. C, Particles and fields, Vol.2(1), pp.77-93
- DOI
- 10.1007/PL00021563
- ISSN
- 1434-6044
- eISSN
- 1434-6052
- Language
- English
- Date published
- 03/01/1998
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627280702771
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