Article
Search for QCD-instanton Induced Events in Eeep Inelastic ep Scattering at HERA
European Physical Journal C
Document Type
Article
Publication Date
5-1-2004
Disciplines
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, Q2 > 120 GeV 2, 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 8.9pb.
DOI
https://doi.org/10.1140/epjc/s2004-01735-3
First Department
Physics
Acknowledgements
Open access article retrieved March 18, 2021 from https://link.springer.com/content/pdf/10.1140/epjc/s2004-01735-3.pdf
Citation Information
S. Chekanov, M. Derrick, D. Krakauer, J. H. Loizides, et al.. "Search for QCD-instanton Induced Events in Eeep Inelastic ep Scattering at HERA" European Physical Journal C Vol. 34 Iss. 3 (2004) p. 255 - 265 Available at: http://works.bepress.com/margarita_mattingly/192/