Journal Article/Contribution to a conference proceedings

PUBDB-2025-02159

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Jet fragmentation calculation at NLO with general-purpose Monte Carlo generators

Shen, X. (Corresponding author)Extern*DESY* ; Gao, J. ; Liu, C. ; Zhou, B.

2024
SISSA Trieste

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Please use a persistent id in citations: doi:10.22323/1.449.0278  doi:10.3204/PUBDB-2025-02159

Abstract: Observables for single-inclusive hadron productions can be calculated by convolution of process-dependent partonic cross sections and universal fragmentation functions (FFs) at leading power in QCD factorization theory. The FMNLO framework is proposed to perform such calculations in an automated way at next-to-leading order (NLO) in QCD using general-purpose Monte Carlo generators. In this talk, we present the basic idea of FMNLO, which relies on a combination of the phase-space slicing method and local subtraction methods. Additionally, with the help of interpolation techniques, FMNLO is also a promising tool for fits of FFs. We present the outcomes of a new NLO fit of FFs to unidentified charged hadrons using LHC measurements, with particular sensitivity to the gluon FF.

Keyword(s): higher-order: 1 ; jet: fragmentation ; hadron: production ; quantum chromodynamics: factorization ; perturbation theory ; Monte Carlo ; sensitivity ; fragmentation function ; CERN LHC Coll ; phase space

Note: cc-by-nc-nd

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Contributing Institute(s):

1. LHC/CMS Experiment (CMS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. No specific instrument

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Database coverage:
; ; ; ; DOAJ Seal ; SCOPUS

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