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The structure of large logarithmic corrections at small transverse momentum in hadronic collisions

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arxiv hep-ph/0108273 v1 pith:IJZWBABV submitted 2001-08-31 hep-ph

D. de Florian , M. Grazzini This is my paper · ORCID
classification hep-ph
keywords logarithmiccollisionscontributionsformhadroniclargeresultsresummation
verification ladder T0 review T1 audit T2 compute T3 formal

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We consider the region of small transverse momenta in the production of high-mass systems in hadronic collisions. By using the current knowledge on the infrared behaviour of tree-level and one-loop QCD amplitudes at O(alpha_s^2), we analytically compute the general form of the logarithmically-enhanced contributions up to next-to-next-to-leading logarithmic accuracy. By comparing the results with q_T-resummation formulae we extract the coefficients that control the resummation of the large logarithmic contributions for both quark and gluon channels. Our results show that within the conventional resummation formalism the Sudakov form factor is actually process-dependent.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A Toolbox for $q_T$ and $0$-Jettiness Subtractions at N$^3$LO

    hep-ph 2019-09 conditional novelty 8.0 of 10

    The paper provides the complete three-loop singular subtraction terms for qT and 0-jettiness and derives the first threshold predictions for the three-loop beam-function coefficients, later confirmed by direct calculation.

  2. MiNNLO$_{\text{PS}}$: A new method to match NNLO QCD to parton showers

    hep-ph 2019-08 conditional novelty 8.0 of 10

    MiNNLOPS matches NNLO QCD to parton showers without reweighting or merging scales, preserving leading-logarithmic shower accuracy for transverse-momentum-ordered showers.

  3. The Collins-Soper kernel from a vacuum soft function

    hep-lat 2026-06 unverdicted novelty 7.0 of 10

    The Collins-Soper kernel is extracted from lattice computations of a vacuum soft function, showing rapidity dependence consistent with Collins-Soper evolution, comparable errors to hadronic methods, and saturation at ...

  4. Resumming transverse observables for NNLO+PS matching in GENEVA

    hep-ph 2025-05 conditional novelty 6.0 of 10

    A GENEVA NNLO+PS generator for b bbar H and c cbar H is built with qT resummation at N3LL and the first NLL' resummation of a transverse-measure one-jettiness.

  5. Soft-gluon coupling and the TMD parton branching Sudakov form factor

    hep-ph 2024-12 conditional novelty 6.0 of 10

    The parton branching TMD framework is upgraded from NLL to NNLL accuracy using the soft-gluon physical coupling, with the Collins-Soper kernel evaluated at NNLL.

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