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A C++ interface to QCDNUM
Valerio Bertone, Michiel Botje
In this document we report on the recent development of a C++ interface to the FORTRAN-based evolution program QCDNUM. A short description of the interface is given with a few basi…
Illuminating the photon content of the proton within a global PDF analysis
Valerio Bertone, Stefano Carrazza, Nathan P. Hartland +1
Precision phenomenology at the LHC requires accounting for both higher-order QCD and electroweak corrections as well as for photon-initiated subprocesses. Building upon the recent…
Heavy-flavor parton distributions without heavy-flavor matching prescriptions
Valerio Bertone, Alexandre Glazov, Alexander Mitov +2
We show that the well-known obstacle for working with the zero-mass variable flavor number scheme, namely, the omission of O(1) mass power corrections close to the conventional hea…
Parton distributions with small-x resummation: evidence for BFKL dynamics in HERA data
Richard D. Ball, Valerio Bertone, Marco Bonvini +3
We present a determination of the parton distribution functions of the proton in which NLO and NNLO fixed-order calculations are supplemented by NLLx small-x resummation. Deep inel…
xFitter 2.0.0: An Open Source QCD Fit Framework
V. Bertone, M. Botje, D. Britzger +10
xFitter is an open-source package that provides a framework for the determination of the parton distribution functions (PDFs) of the proton for many different kinds of analyses in…
The photon PDF from high-mass Drell-Yan data at the LHC
Valerio Bertone
I present a determination of the photon PDF from a fit to the recent ATLAS measurements of high-mass Drell-Yan lepton-pair production at TeV. This analysis is based…