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

Articolo
Data di Pubblicazione:
2022
Abstract:
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.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
Parton Distributions; Deep Inelastic Scattering or Small-x Physics; Resummation; Specific QCD Phenomenology
Elenco autori:
Alessandro Bacchetta; Valerio Bertone; Chiara Bissolotti; Giuseppe Bozzi; Matteo Cerutti; Fulvio Piacenza; Marco Radici; Andrea Signori
Link alla scheda completa:
https://iris.unito.it/handle/2318/1894313
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1894313/1100260/JHEP10(2022)127.pdf
Pubblicato in:
JOURNAL OF HIGH ENERGY PHYSICS
Journal
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URL

https://link.springer.com/article/10.1007/JHEP10(2022)127; https://arxiv.org/abs/2206.07598
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