TY  - EJOUR
AU  - Butenschoen, Mathias
AU  - Kniehl, Bernd A.
TI  - Dipole subtraction at next-to-leading order in nonrelativistic-QCD factorization
IS  - arXiv:1909.03698
M1  - PUBDB-2019-03340
M1  - arXiv:1909.03698
M1  - DESY-19-100
PY  - 2019
AB  - We describe an implementation of a subtraction scheme in the nonrelativistic-QCD treatment of heavy-quarkonium production at next-to-leading-order in the strong-coupling constant, covering S- and P-wave bound states. It is based on the dipole subtraction in the massless version by Catani and Seymour and its extension to massive quarks by Phaf and Weinzierl. Important additions include the treatment of heavy-quark bound states, in particular due to the more complicated infrared-divergence structure in the case of P-wave states.
LB  - PUB:(DE-HGF)25 ; PUB:(DE-HGF)29
UR  - https://bib-pubdb1.desy.de/record/425663
ER  -