Unpolarized transverse momentum distributions from a global fit of Drell-Yan and semi-inclusive deep-inelastic scattering data

被引：64
作者：
Bacchetta, Alessandro [1 ,2 ]
Bertone, Valerio [3 ]
Bissolotti, Chiara [1 ,4 ]
Bozzi, Giuseppe [5 ,6 ]
Cerutti, Matteo [1 ,2 ]
Piacenza, Fulvio [1 ]
Radici, Marco [2 ]
Signori, Andrea [1 ,2 ,7 ]
机构：
[1] Univ Pavia, Dipartimento Fis, Via Bassi 6, I-27100 Pavia, Italy
[2] Ist Nazl Fis Nucl, Sez Pavia, Via Bassi 6, I-27100 Pavia, Italy
[3] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France
[4] Argonne Natl Lab, HEP Div, 9700 S Cass Ave, Lemont, IL 60439 USA
[5] Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, CA, Italy
[6] Ist Nazl Fis Nucl, Sez Cagliari, I-09042 Monserrato, CA, Italy
[7] Univ Torino, I-10125 Turin, Italy
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2022年 / 2022卷 / 10期
基金：
欧盟地平线“2020”;
关键词：
Parton Distributions; Deep Inelastic Scattering or Small-x Physics; Resummation; Specific QCD Phenomenology; HIGGS-BOSON; RESUMMATION; FRAGMENTATION; SPECTRUM; MASS;
D O I：
10.1007/JHEP10(2022)127
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We present an extraction of unpolarized transverse-momentum-dependent parton distribution and fragmentation functions based on more than two thousand data points from several experiments for two different processes: semi-inclusive deep-inelastic scattering and Drell-Yan production. The baseline analysis is performed using the Monte Carlo replica method and resumming large logarithms at (NLL)-L-3 accuracy. The resulting description of the data is very good (chi(2)/N-dat = 1.06). For semi-inclusive deep-inelastic scattering, predictions for multiplicities are normalized by factors that cure the discrepancy with data introduced by higher-order perturbative corrections.
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页数：52
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