Dipole subtraction vs. phase space slicing in NLO NRQCD heavy-quarkonium production calculations

We compare two approaches to evaluate cross sections of heavy-quarkonium production at next-to-leading order in nonrelativistic QCD involving S- and P-wave Fock states: the customary approach based on phase space slicing and the approach based on dipole subtraction recently elaborated by us. We find...

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Bibliographic Details
Main Authors: Mathias Butenschoen, Bernd A. Kniehl
Format: Article
Language:English
Published: Elsevier 2020-08-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321320301425