Dipole subtraction at next-to-leading order in nonrelativistic-QCD factorization

Abstract

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.

arXiv comment29 pages, 2 figures, 3 tables, 3 formulas added, corrections and minor changes included, accepted for publication in Nucl. Phys. B

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Cited by in corpus (8)

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• The complete study on polarization of ${\rm Y}(nS)$ hadroproduction at QCD next-to-leading order
• How well does nonrelativistic QCD factorization work at next-to-leading order?
• Constraints on Nonrelativistic-QCD Long-Distance Matrix Elements from $J/\psi$ Plus $W$/$Z$ Production at the LHC
• Dipole Subtraction vs. Phase Space Slicing in NLO NRQCD Heavy-Quarkonium Production Calculations
• FKS subtraction for quarkonium production at NLO
• Azimuthal angular correlation of $J/\psi$ plus jet production at the electron-ion collider