We present a first preliminary determination of a set of collinear fragmentation func- tions of charged pions based on the NNPDF methodology. This determination is based on a wide set of single-inclusive annihilation data, including the most recent and precise measurements from B-factory experiments. Our analysis is performed at leading, next-to-leading and next-to-next- to-leading order in quantum chromodynamics. We discuss the result of our fits, highlighting the quality of their description of the data and their stability upon inclusion of higher-order corrections.
Towards a Neural Network determination of Pion Fragmentation Functions / V. Bertone, S. Carrazza, E.R. Nocera, N.P. Hartland, J. Rojo. ((Intervento presentato al convegno Parton Radiation and Fragmentation from LHC to FCC-ee tenutosi a Geneva: November 22-23 nel 2016.
Towards a Neural Network determination of Pion Fragmentation Functions
S. CarrazzaSecondo
;
2016
Abstract
We present a first preliminary determination of a set of collinear fragmentation func- tions of charged pions based on the NNPDF methodology. This determination is based on a wide set of single-inclusive annihilation data, including the most recent and precise measurements from B-factory experiments. Our analysis is performed at leading, next-to-leading and next-to-next- to-leading order in quantum chromodynamics. We discuss the result of our fits, highlighting the quality of their description of the data and their stability upon inclusion of higher-order corrections.
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