TY  - JOUR
AU  - Gao, Jun
AU  - Liu, ChongYang
AU  - Shen, Xiaomin
AU  - Xing, Hongxi
AU  - Zhao, Yuxiang
TI  - Simultaneous Determination of Fragmentation Functions and Test on Momentum Sum Rule
JO  - Physical review letters
VL  - 132
IS  - 26
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PUBDB-2024-07535
M1  - arXiv:2401.02781
SP  - 261903
PY  - 2024
N1  - Phys.Rev.Lett. 132 (2024) 26, 261903. published version; link to FF grids provided
AB  - 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.
KW  - sum rule: momentum (INSPIRE)
KW  - hadron: fragmentation function (INSPIRE)
KW  - gluon: fragmentation (INSPIRE)
KW  - jet: fragmentation (INSPIRE)
KW  - quantum chromodynamics: factorization (INSPIRE)
KW  - higher-order: 1 (INSPIRE)
KW  - deep inelastic scattering: semi-inclusive reaction (INSPIRE)
KW  - p p: scattering (INSPIRE)
KW  - electron positron: annihilation (INSPIRE)
KW  - kinematics (INSPIRE)
KW  - quark: momentum (INSPIRE)
KW  - pi: fragmentation function (INSPIRE)
KW  - K: fragmentation function (INSPIRE)
KW  - p: fragmentation function (INSPIRE)
KW  - statistical analysis (INSPIRE)
KW  - data analysis method (INSPIRE)
LB  - PUB:(DE-HGF)16
C6  - 38996282
UR  - <Go to ISI:>//WOS:001262675300005
DO  - DOI:10.1103/PhysRevLett.132.261903
UR  - https://bib-pubdb1.desy.de/record/619287
ER  -