PoS - Proceedings of Science
Volume 308 - QCD Evolution 2017 (QCDEV2017) - Monday, May 22, 2017-Afternoon 1
A first determination of the unpolarized quark TMDs from a global analysis
C. Pisano*, A. Bacchetta, F. Delcarro, M. Radici and A. Signori
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Published on: March 23, 2018
Transverse momentum dependent distribution and fragmentation functions of unpolarized quarks inside unpolarized protons are extracted, for the first time, through a simultaneous analysis of semi-inclusive deep-inelastic scattering, Drell-Yan and $Z$ boson hadroproduction processes. This study is performed at leading order in perturbative QCD, with energy scale evolution at the next-to-leading logarithmic accuracy. Moreover, some specific choices are made to deal with low scale evolution around 1 GeV$^2$. Since only data in the low transverse momentum region are considered, no matching to fixed-order calculations at high transverse momentum is needed.
DOI: https://doi.org/10.22323/1.308.0010
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