Publication
Title
Search for QCD instanton-induced processes at HERA in the high-$Q^{2}$ domain
Author
Abstract
 Signals of QCD instanton-induced processes are searched for in neutral current deep-inelastic scattering at the electron-proton collider HERA in the kinematic region defined by theBjorken-scaling variable x > 10(-3), the inelasticity 0.2 < y < 0.7 and the photon virtuality 150 < Q(2) < 15000 GeV2. The search is performed using H1 data corresponding to an integrated luminosity of 351 pb(-1). No evidence for the production of QCD instanton-induced events is observed. Upper limits on the cross section for instanton-induced processes between 1.5 and 6 pb, at 95% confidence level, are obtained depending on the kinematic domain in which instantons could be produced. Compared to earlier publications, the limits are improved by an order of magnitude and for the first time are challenging predictions.
Language
English
Source (journal)
European physical journal : C : particles and fields. - Berlin
Publication
Berlin : 2016
ISSN
1434-6044
1434-6052
Volume/pages
76 :7 (2016) , 13 p.
Article Reference
381
ISI
000379709000003
Medium
E-only publicatie
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address