paper

Bounds on QCD Instantons from HERA

arXiv:hep-ex/9708008 · doi:10.1016/S0550-3213(97)00741-4

Abstract

Signals for processes induced by QCD instantons are searched for in HERA data on the hadronic final state in deep-inelastic scattering. The maximally allowed fraction of instanton induced events is found at 95% confidence level to be on the percent level in the kinematic domain 0.0001<x<0.01 and 5 < Q-squared < 100 GeV-squared. The most stringent limits are obtained from the multiplicity distributions.

14 pages, latex, 9 figures as ps/eps

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