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Jet axes and universal transverse-momentum-dependent fragmentation

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arxiv 1612.04817 v3 pith:EIJRTK2Z submitted 2016-12-14 hep-ph nucl-th

Duff Neill , Ignazio Scimemi , Wouter J. Waalewijn This is my paper · ORCID
classification hep-phnucl-th
keywords fragmentationtransverseeffectshadronsjetsmomentumtransverse-momentum-dependentuniversal
verification ladder T0 review T1 audit T2 compute T3 formal
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We study the transverse momentum spectrum of hadrons in jets. By measuring the transverse momentum with respect to a judiciously chosen axis, we find that this observable is insensitive to (the recoil of) soft radiation. Furthermore, for small transverse momenta we show that the effects of the jet boundary factorize, leading to a new transverse-momentum-dependent (TMD) fragmentation function. In contrast to the usual TMD fragmentation functions, it does not involve rapidity divergences and is universal in the sense that it is independent of the type of process and number of jets. These results directly apply to sub-jets instead of hadrons. We discuss potential applications, which include studying nuclear modification effects in heavy-ion collisions and identifying boosted heavy resonances.

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Cited by 4 Pith papers

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

  1. Soft background fields at next-to-leading power in transverse momentum dependent SIDIS with jets

    hep-ph 2025-07 conditional novelty 7.0 of 10

    New next-to-leading-power factorization for SIDIS with jets from a background-field method with explicit soft modes, including operator-level definitions of twist-3 TMDs free of rapidity and endpoint divergences.

  2. Azimuthal decorrelation in diffractive dijet production

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    All-order resummation of soft gluons for transverse energy-energy correlators in diffractive dijet production demonstrates sensitivity of acoplanarity to diffractive TMDs.

  3. Factorization and Resummation for the Nearside Energy-Energy Correlators

    hep-ph 2025-07 conditional novelty 6.0 of 10

    A new all-order resummation formula in Fourier b_T-space for the nearside energy-energy correlator, derived from di-hadron fragmentation functions, matches fixed-order calculations and predicts a small-angle turnover.

  4. One-Point energy correlator inside jets

    hep-ph 2025-07 conditional novelty 4.0 of 10

    A TMD factorization and NNLL resummation is derived for a one-point energy correlator inside jets, and the normalized observable mainly depends on the jet scale, with sensitivity to gluon TMDFFs.

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