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Physical Review Letters
Article . 2024 . Peer-reviewed
License: CC BY
Data sources: Crossref
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https://dx.doi.org/10.48550/ar...
Article . 2024
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Simultaneous Determination of Fragmentation Functions and Test on Momentum Sum Rule

Authors: Jun Gao; ChongYang Liu; XiaoMin Shen; Hongxi Xing; Yuxiang Zhao;

Simultaneous Determination of Fragmentation Functions and Test on Momentum Sum Rule

Abstract

We perform a simultaneous global analysis of hadron fragmentation functions (FFs) to various charged hadrons (π±, K±, and p/p¯) at next-to-leading order in QCD. The world data include results from electron-positron single-inclusive annihilation, semi-inclusive deep inelastic scattering, as well as proton-proton collisions including jet fragmentation measurements for the first time, which lead to strong constraints on the gluon fragmentations. By carefully selecting hadron kinematics to ensure the validity of QCD factorization and the convergence of perturbative calculations, we achieve a satisfying best fit with χ2/d.o.f.=0.90. The total momentum of u, d quarks and gluon carried by light charged hadrons have been determined precisely, urging precision determinations of FFs to neutral hadrons for a test of fundamental sum rules in QCD fragmentation. Published by the American Physical Society 2024

Keywords

p p: scattering, data analysis method, Nuclear Theory, FOS: Physical sciences, electron positron: annihilation, High Energy Physics - Experiment, Nuclear Theory (nucl-th), sum rule: momentum, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), statistical analysis, pi: fragmentation function, jet: fragmentation, quantum chromodynamics: factorization, info:eu-repo/classification/ddc/530, deep inelastic scattering: semi-inclusive reaction, higher-order: 1, K: fragmentation function, quark: momentum, p: fragmentation function, gluon: fragmentation, High Energy Physics - Phenomenology, kinematics, hadron: fragmentation function

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
Green
hybrid