5 papers
Quantitative Understanding of PDF Fits and their Uncertainties
Amedeo Chiefa, Luigi Del Debbio, Richard Kenway
Parton Distribution Functions (PDFs) play a central role in describing experimental data at colliders and provide insight into the structure of nucleons. As the LHC enters an era o…
First next-to-next-to-leading-order extraction of fragmentation functions for Lambda hyperons
Valerio Bertone, Alessia Bongallino, Amedeo Chiefa +2
We present MAPFF1.0_Lambda, the first global analysis at next-to-next-to-leading order in perturbative QCD of the collinear unpolarised fragmentation functions of Lambda hyperons.…
Parton distributions with higher twist and jet power corrections
Richard D. Ball, Amedeo Chiefa, Roy Stegeman
We present a global determination of parton distribution functions (PDFs) that accounts for higher twist corrections in deep-inelastic scattering (DIS) and linear power corrections…
Parton distributions confront LHC Run II data: a quantitative appraisal
Amedeo Chiefa, Mark N. Costantini, Juan Cruz-Martinez +6
We present a systematic comparison of theoretical predictions and various high-precision experimental measurements, specifically of differential cross sections performed by the LHC…
Helicity-dependent parton distribution functions at next-to-next-to-leading order accuracy from inclusive and semi-inclusive deep-inelastic scattering data
MAP, Collaboration, : +3
We present MAPPDFpol1.0, a new determination of the helicity-dependent parton distribution functions (PDFs) of the proton from a set of longitudinally polarised inclusive and semi-…