Mutchler, Gordon S.2009-06-042009-06-041996Traynor, Michael. "Search for evidence of photoproduction of higher-twist QCD events at Experiment 683 at Fermi National Accelerator Laboratory." (1996) Diss., Rice University. <a href="https://hdl.handle.net/1911/16995">https://hdl.handle.net/1911/16995</a>.https://hdl.handle.net/1911/16995Experiment 683 at Fermilab Wide Band Photon Laboratory observed events via $\gamma\rm p\to$ jets during the 1991-1992 fixed target run. The present analysis attempted to observe the higher-twist subprocess in QCD using that data to measure the p$\sb{\perp}$ spectrum via a clustering algorithm tuned to optimize the distinctive topology of higher-twist events. Results indicate a substantial k$\sb{\perp}$ promotion effect at lower p$\sb{\perp}$ and a significant NLO contribution to the photoproduction.134 p.application/pdfengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.Particle physicsElementary particlesHigh energy physicsNuclear physicsThesisTHESIS PHYS. 1996 TRAYNOR