Unbiased Polarised Parton Distribution Functions and their Uncertainties

We present preliminary results on the determination of spin-dependent, or polarised, Parton Distribution Functions (PDFs) from all relevant inclusive polarised DIS data. The analysis is performed within the NNPDF approach, which provides a faithful and statistically sound representation of PDFs and...

Descripción completa

Detalles Bibliográficos
Autores principales: Nocera, Emanuele R., Forte, Stefano, Ridolfi, Giovanni, Rojo, Juan
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.3204/DESY-PROC-2012-02/273
http://cds.cern.ch/record/1454053
_version_ 1780925001005793280
author Nocera, Emanuele R.
Forte, Stefano
Ridolfi, Giovanni
Rojo, Juan
author_facet Nocera, Emanuele R.
Forte, Stefano
Ridolfi, Giovanni
Rojo, Juan
author_sort Nocera, Emanuele R.
collection CERN
description We present preliminary results on the determination of spin-dependent, or polarised, Parton Distribution Functions (PDFs) from all relevant inclusive polarised DIS data. The analysis is performed within the NNPDF approach, which provides a faithful and statistically sound representation of PDFs and their uncertainties. We describe how the NNPDF methodology has been extended to the polarised case, and compare our results with other recent polarised parton sets. We show that polarised PDF uncertainties can be sizeably underestimated in standard determinations, most notably for the gluon.
id cern-1454053
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-14540532023-03-14T17:28:00Zdoi:10.3204/DESY-PROC-2012-02/273http://cds.cern.ch/record/1454053engNocera, Emanuele R.Forte, StefanoRidolfi, GiovanniRojo, JuanUnbiased Polarised Parton Distribution Functions and their UncertaintiesParticle Physics - PhenomenologyWe present preliminary results on the determination of spin-dependent, or polarised, Parton Distribution Functions (PDFs) from all relevant inclusive polarised DIS data. The analysis is performed within the NNPDF approach, which provides a faithful and statistically sound representation of PDFs and their uncertainties. We describe how the NNPDF methodology has been extended to the polarised case, and compare our results with other recent polarised parton sets. We show that polarised PDF uncertainties can be sizeably underestimated in standard determinations, most notably for the gluon.We present preliminary results on the determination of spin-dependent, or polarised, Parton Distribution Functions (PDFs) from all relevant inclusive polarised DIS data. The analysis is performed within the NNPDF approach, which provides a faithful and statistically sound representation of PDFs and their uncertainties. We describe how the NNPDF methodology has been extended to the polarised case, and compare our results with other recent polarised parton sets. We show that polarised PDF uncertainties can be sizeably underestimated in standard determinations, most notably for the gluon.arXiv:1206.0201oai:cds.cern.ch:14540532012-06-04
spellingShingle Particle Physics - Phenomenology
Nocera, Emanuele R.
Forte, Stefano
Ridolfi, Giovanni
Rojo, Juan
Unbiased Polarised Parton Distribution Functions and their Uncertainties
title Unbiased Polarised Parton Distribution Functions and their Uncertainties
title_full Unbiased Polarised Parton Distribution Functions and their Uncertainties
title_fullStr Unbiased Polarised Parton Distribution Functions and their Uncertainties
title_full_unstemmed Unbiased Polarised Parton Distribution Functions and their Uncertainties
title_short Unbiased Polarised Parton Distribution Functions and their Uncertainties
title_sort unbiased polarised parton distribution functions and their uncertainties
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.3204/DESY-PROC-2012-02/273
http://cds.cern.ch/record/1454053
work_keys_str_mv AT noceraemanueler unbiasedpolarisedpartondistributionfunctionsandtheiruncertainties
AT fortestefano unbiasedpolarisedpartondistributionfunctionsandtheiruncertainties
AT ridolfigiovanni unbiasedpolarisedpartondistributionfunctionsandtheiruncertainties
AT rojojuan unbiasedpolarisedpartondistributionfunctionsandtheiruncertainties

Ejemplares similares