Speaker
Petja Paakkinen
Description
We present an updated global analysis of nuclear PDFs, EPPS21. As main new constraints on our fit, we include LHC proton-lead 5 TeV double-differential dijet and D-meson data, and 8 TeV W$^\pm$ data. These measurements are found to give a consistent picture of small-x shadowing and mid-x antishadowing of nuclear gluons and significantly reduce the nuclear-PDF uncertainties. In addition, we also include new DIS data from the JLab CLAS and Hall-C experiments. On the theoretical side, we have improved the analysis by propagating the baseline proton-PDF uncertainties into the extraction of the nuclear modifications and provide the tools for propagating the correlated uncertainties into any observable computable in collinear factorization.
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Authors
Prof.
Kari J. Eskola
(University of Jyväskylä (FI))
Petja Paakkinen
Hannu Paukkunen
Carlos Albert Salgado Lopez
(Universidade de Santiago de Compostela (ES))
