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NLO QCD Corrections to the Polarized Photo- and Hadroproduction of Heavy Quarks

Bojak, I. ORCID: (2000) NLO QCD Corrections to the Polarized Photo- and Hadroproduction of Heavy Quarks. PhD thesis, University of Dortmund

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The complete details of our calculation of the NLO QCD corrections to heavy flavor photo- and hadroproduction with longitudinally polarized initial states are presented. The main motivation for investigating these processes is the determination of the polarized gluon density at the COMPASS and RHIC experiments, respectively, in the near future. All methods used in the computation are extensively documented, providing a self-contained introduction to this type of calculations. Some employed tools also may be of general interest, e.g., the series expansion of hypergeometric functions. The relevant parton level results are collected and plotted in the form of scaling functions. However, the simplification of the obtained gluon-gluon virtual contributions has not been completed yet. Thus NLO phenomenological predictions are only given in the case of photoproduction. The theoretical uncertainties of these predictions, in particular with respect to the heavy quark mass, are carefully considered. Also it is shown that transverse momentum cuts can considerably enhance the measured production asymmetries. Finally unpolarized heavy quark production is reviewed in order to derive conditions for a successful interpretation of future spin-dependent experimental data.

Item Type:Thesis (PhD)
Thesis Supervisor:Reya, E.
Thesis/Report Department:Department of Theoretical Physics
Identification Number/DOI:
Divisions:Interdisciplinary Research Centres (IDRCs) > Centre for Integrative Neuroscience and Neurodynamics (CINN)
ID Code:32528
Uncontrolled Keywords:high energy physics, phenomenology

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