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Antenna subtraction for processes with identified particles at hadron colliders

Bonino, Leonardo; Gehrmann, Thomas; Marcoli, Matteo; Schürmann, Robin; Stagnitto, Giovanni

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Authors

Leonardo Bonino

Thomas Gehrmann

Dr Matteo Marcoli matteo.marcoli@durham.ac.uk
Newton International Fellow (Royal Society)

Robin Schürmann

Giovanni Stagnitto



Abstract

Collider processes with identified hadrons in the final state are widely studied in view of determining details of the proton structure and of understanding hadronization. Their theory description requires the introduction of fragmentation functions, which parametrise the transition of a produced parton into the identified hadron. To compute higher-order perturbative corrections to these processes requires a subtraction method for infrared singular configurations. We extend the antenna subtraction method to hadron fragmentation processes in hadronic collisions up to next-to-next-to-leading order (NNLO) in QCD by computing the required fragmentation antenna functions in initial-final kinematics. The integrated antenna functions retain their dependence on the momentum fractions of the incoming and fragmenting partons.

Citation

Bonino, L., Gehrmann, T., Marcoli, M., Schürmann, R., & Stagnitto, G. (2024). Antenna subtraction for processes with identified particles at hadron colliders. Journal of High Energy Physics, 2024(8), Article 73. https://doi.org/10.1007/jhep08%282024%29073

Journal Article Type Article
Acceptance Date Jul 31, 2024
Online Publication Date Aug 8, 2024
Publication Date 2024-08
Deposit Date Aug 16, 2024
Publicly Available Date Aug 16, 2024
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Electronic ISSN 1029-8479
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2024
Issue 8
Article Number 73
DOI https://doi.org/10.1007/jhep08%282024%29073
Keywords Specific QCD Phenomenology, Jets and Jet Substructure, Higher-Order Perturbative Calculations
Public URL https://durham-repository.worktribe.com/output/2745874

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