Threshold corrections in bottom and charm quark hadroproduction at next-to-next-to-leading order.
HEP, Cavendish Laboratory, University of Cambridge
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Kidonakis, N., & Vogt, R. (2004). Threshold corrections in bottom and charm quark hadroproduction at next-to-next-to-leading order..
We calculate threshold soft-gluon corrections to total cross sections and transverse momentum distributions for bottom and charm quark production in fixed-target experiments, considering both pp and −p interactions. We investigate the quality of the near threshold soft-gluon approximation at next-to-leading order (NLO) and calculate next-to-nextto- leading order (NNLO) corrections through next-to-next-to-next-to-leading-logarithmic (NNNLL) accuracy, including some virtual terms. We find that the NNLO threshold corrections reduce the factorization and renormalization scale dependence of the cross sections.
This record's URL: http://www.dspace.cam.ac.uk/handle/1810/224310