Journal article
Search for QCD-instanton induced events in deep inelastic ep scattering at HERA
The European physical journal. C, Particles and fields, Vol.34(3), pp.255-265
05/01/2004
DOI: 10.1140/epjc/s2004-01735-3
Abstract
A search for QCD-instanton-induced events in deep inelastic ep scattering has been performed with the ZEUS detector at the HERA collider, using data corresponding to an integrated luminosity of 38 pb(-1). A kinematic range defined by cuts on the photon virtuality, Q(2) > 120 GeV2, and on the Bjorken scaling variable, x > 10(-3), has been investigated. The QCD-instanton induced events were modelled by the Monte Carlo generator QCDINS. A background-independent, conservative 95% confidence level upper limit for the instanton cross section of 26 pb is obtained, to be compared with the theoretically expected value of 8.9 pb.
Details
- Title: Subtitle
- Search for QCD-instanton induced events in deep inelastic ep scattering at HERA
- Creators
- ZEUS CollaborationJ Repond (Contributor)
- Resource Type
- Journal article
- Publication Details
- The European physical journal. C, Particles and fields, Vol.34(3), pp.255-265
- DOI
- 10.1140/epjc/s2004-01735-3
- ISSN
- 1434-6044
- eISSN
- 1434-6052
- Publisher
- Springer Nature
- Number of pages
- 11
- Language
- English
- Date published
- 05/01/2004
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984627223902771
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