Heavy quark NLO
Calculations of heavy quark production in hadronic collisions follow the approach developed by Collins, Soper and Sterman:
Explicit calculation were done at NLO (O(?s3)) by Nason, Dawson and Ellis (NDE), Mangano Nason and Ridolfi (MNR)
Nason et al., Nucl., Phys. B327 (1989) 49, B335 (1990) 260
W. Beenakker et al., Nucl. Phys. B351 (1991) 507
M. Mangano et al., Nucl. Phys B373 (1992) 295