Global analysis of nuclear parton distributions
We present a new global QCD analysis of nuclear parton distribution functions and their uncertainties. In addition to the most commonly analyzed data sets for the deep-inelastic scattering of charged leptons off nuclei and Drell-Yan dilepton production, we include also measurements for neutrino-nucl...
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I28-R145-paper_15507998_v85_n7_p_DeFlorian_oai2024-08-16 De Florian, D. Sassot, R. Zurita, P. Stratmann, M. 2012 We present a new global QCD analysis of nuclear parton distribution functions and their uncertainties. In addition to the most commonly analyzed data sets for the deep-inelastic scattering of charged leptons off nuclei and Drell-Yan dilepton production, we include also measurements for neutrino-nucleus scattering and inclusive pion production in deuteron-gold collisions. The analysis is performed at next-to-leading order accuracy in perturbative QCD in a general mass variable flavor number scheme, adopting a current set of free nucleon parton distribution functions, defined accordingly, as reference. The emerging picture is one of consistency, where universal nuclear modification factors for each parton flavor reproduce the main features of all data without any significant tension among the different sets. We use the Hessian method to estimate the uncertainties of the obtained nuclear modification factors and examine critically their range of validity in view of the sparse kinematic coverage of the present data. We briefly present several applications of our nuclear parton densities in hard nuclear reactions at BNL-RHIC, CERN-LHC, and a future electron-ion collider. © 2012 American Physical Society. Fil:De Florian, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Zurita, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_15507998_v85_n7_p_DeFlorian info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Phys Rev D Part Fields Gravit Cosmol 2012;85(7) Global analysis of nuclear parton distributions info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_15507998_v85_n7_p_DeFlorian_oai |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-145 |
collection |
Repositorio Digital de la Universidad de Buenos Aires (UBA) |
description |
We present a new global QCD analysis of nuclear parton distribution functions and their uncertainties. In addition to the most commonly analyzed data sets for the deep-inelastic scattering of charged leptons off nuclei and Drell-Yan dilepton production, we include also measurements for neutrino-nucleus scattering and inclusive pion production in deuteron-gold collisions. The analysis is performed at next-to-leading order accuracy in perturbative QCD in a general mass variable flavor number scheme, adopting a current set of free nucleon parton distribution functions, defined accordingly, as reference. The emerging picture is one of consistency, where universal nuclear modification factors for each parton flavor reproduce the main features of all data without any significant tension among the different sets. We use the Hessian method to estimate the uncertainties of the obtained nuclear modification factors and examine critically their range of validity in view of the sparse kinematic coverage of the present data. We briefly present several applications of our nuclear parton densities in hard nuclear reactions at BNL-RHIC, CERN-LHC, and a future electron-ion collider. © 2012 American Physical Society. |
format |
Artículo Artículo publishedVersion |
author |
De Florian, D. Sassot, R. Zurita, P. Stratmann, M. |
spellingShingle |
De Florian, D. Sassot, R. Zurita, P. Stratmann, M. Global analysis of nuclear parton distributions |
author_facet |
De Florian, D. Sassot, R. Zurita, P. Stratmann, M. |
author_sort |
De Florian, D. |
title |
Global analysis of nuclear parton distributions |
title_short |
Global analysis of nuclear parton distributions |
title_full |
Global analysis of nuclear parton distributions |
title_fullStr |
Global analysis of nuclear parton distributions |
title_full_unstemmed |
Global analysis of nuclear parton distributions |
title_sort |
global analysis of nuclear parton distributions |
publishDate |
2012 |
url |
http://hdl.handle.net/20.500.12110/paper_15507998_v85_n7_p_DeFlorian https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_15507998_v85_n7_p_DeFlorian_oai |
work_keys_str_mv |
AT defloriand globalanalysisofnuclearpartondistributions AT sassotr globalanalysisofnuclearpartondistributions AT zuritap globalanalysisofnuclearpartondistributions AT stratmannm globalanalysisofnuclearpartondistributions |
_version_ |
1809357027043966976 |