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Extraction of Pion Transverse Momentum Distributions from Drell-Yan data
Matteo Cerutti, Lorenzo Rossi, Simone Venturini +4
We map the distribution of unpolarized quarks inside a unpolarized pion as a function of the quark's transverse momentum, encoded in unpolarized Transverse Momentum Distributions (…
Towards the phenomenological implications of the Physical Scheme in PDF fits
Valerio Bertone, Chris A. Flett, Alan D. Martin +1
We describe the impact on PDF extractions of the 'Physical Scheme', a heavy-quark mass scheme that accounts for the effects of intrinsic heavy-quarks and provides a way to smoothly…
Matching generalised transverse-momentum-dependent distributions onto generalised parton distributions at one loop
Valerio Bertone
The operator definition of generalised transverse-momentum-dependent (GTMD) distributions is exploited to compute for the first time the full set of one-loop corrections to the off…
Improving methods and predictions at high-energy colliders within collinear factorisation
V. Bertone, M. Cacciari, S. Frixione +3
We illustrate how electron Parton Distribution Functions (PDFs) with next-to-leading collinear logarithmic accuracy must be employed in the context of perturbative predictions for…
xFitter: An Open Source QCD Analysis Framework. A resource and reference document for the Snowmass study
The xFitter Developers' Team, :, H. Abdolmaleki +21
We provide an overview of the xFitter open-source software package, review the general capabilities of the program, and highlight applications relevant to the Snowmass study. An up…
Unpolarized Transverse Momentum Distributions from a global fit of Drell-Yan and Semi-Inclusive Deep-Inelastic Scattering data
Alessandro Bacchetta, Valerio Bertone, Chiara Bissolotti +5
We present an extraction of unpolarized transverse-momentum-dependent parton distribution and fragmentation functions based on more than two thousands data points from several expe…