Riedl, Johann and Schaefer, Andreas and Stratmann, Marco (2009) Next-to-leading order QCD corrections to heavy quark correlations in longitudinally polarized hadron-hadron collisions. PHYSICAL REVIEW D, 80 (11): 114020. ISSN 2470-0010, 2470-0029
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We present a comprehensive phenomenological study of heavy flavor distributions and correlations in longitudinally polarized proton-proton collisions at BNL-RHIC. All results are obtained with a flexible parton-level Monte Carlo program at next-to-leading order accuracy and include the fragmentation into heavy mesons, their subsequent semileptonic decays, and experimental cuts. Next-to-leading order QCD corrections are found to be significant for both cross sections and double-spin asymmetries. The sensitivity of heavy flavor measurements at BNL-RHIC to the gluon polarization of the nucleon is assessed. Electron-muon and muon-muon correlations turn out to be the most promising observables. Theoretical uncertainties are estimated by varying renormalization and factorization scales, heavy quark masses, and fragmentation parameters.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SPLITTING FUNCTIONS; SPIN ASYMMETRY; PHOTOPRODUCTION; RENORMALIZATION; 2-LOOPS; HERMES; PAIR; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 31 Aug 2020 10:15 |
| Last Modified: | 31 Aug 2020 10:15 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28088 |
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