Measurement of the Upsilon and Drell-Yan production Cross Sections at √s = 1.8 TeV using Dimuons.
AuthorSmith, Alexander Baird.
Committee ChairJohns, K.
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractThe production of heavy quarkonium in hadronic collisions is particularly interesting as a testing ground for QCD, in that both perturbative and non-perturbative QCD processes are important. Recent measurements of the J/ψ and ψ' cross sections at √s = 1.8 Te V indicate that our present understanding of these processes is incorrect by more than an order of magnitude. In this analysis, the ϒ cross section at √s = 1.8 TeV is extracted from 1992-93 dimuon data collected using the DØ detector at the Fermilab Tevatron. The differential cross section is found to be more than a factor of five higher than the O(ɑ³(s)) prediction over part of the PT range measured. The differential Drell-Yan cross section in the mass region from 6 to 35 GeV/c² is also extracted from the same data sample. The results of this measurement are in good agreement with the partial O(ɑ²(s)) prediction.