Determination of the parton distribution functions of the proton using diverse ATLAS data from pp collisions at vs = 7, 8 and 13 TeV

We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFWandFWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; ANID, Chile; CAS, MOST and NSFC, China; Minciencias, Colombia; MSMT CR, MPOCR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS and CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF andMPG, Germany; GSRI, Greece; RGC and HongKong SAR, China; ISF and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MEiN, Poland; FCT, Portugal; MNE/IFA, Romania; JINR; MESof Russia andNRCKI, Russian Federation; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DSI/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, CANARIE, Compute Canada and CRC, Canada; COST, ERC, ERDF, Horizon 2020 and Marie Sklodowska-Curie Actions, European Union; Investissements d'Avenir Labex, Investissements d'Avenir Idex and ANR, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF, Greece; BSF-NSF and GIF, Israel; Norwegian Financial Mechanism 2014-2021, Norway; NCN and NAWA, Poland; La Caixa Banking Foundation, CERCA Programme Generalitat de Catalunya and PROMETEO and GenT Programmes Generalitat Valenciana, Spain; Goran Gustafssons Stiftelse, Sweden; The Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, theATLAS Tier-1 facilities at TRIUMF (Canada), NDGF(Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA), the Tier-2 facilities worldwide and large non-WLCG resource providers. Major contributors of computing resources are listed in Ref. [87].
This paper presents an analysis at next-to-next-to-leading order in the theory of quantum chromodynamics for the determination of a new set of proton parton distribution functions using diverse measurements in pp collisions at root s = 7, 8 and 13 TeV, performed by the ATLAS experiment at the Large Hadron Collider, together with deep inelastic scattering data from ep collisions at the HERA collider. The ATLAS data sets considered are differential cross-section measurements of inclusive W-+/- and Z/gamma* boson production, W-+/- and Z boson production in association with jets, t (t) over bar production, inclusive jet production and direct photon production. In the analysis, particular attention is paid to the correlation of systematic uncertainties within and between the various ATLAS data sets and to the impact of model, theoretical and parameterisation uncertainties. The resulting set of parton distribution functions is called ATLASpdf21.
ANPCyT
YerPhI, Armenia
Australian Research Council
BMWFW, Austria
Azerbaijan National Academy of Sciences (ANAS)
SSTC, Belarus
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
Natural Sciences and Engineering Research Council of Canada (NSERC) NRC, Canada Canada Foundation for Innovation
CERN
ANID, Chile
Chinese Academy of Sciences Ministry of Science and Technology, China National Natural Science Foundation of China (NSFC)
Minciencias, Colombia
Ministry of Education, Youth & Sports - Czech Republic Czech Republic Government Czech Republic Government
DNRF, Denmark Danish Natural Science Research Council
Centre National de la Recherche Scientifique (CNRS) CEA-DRF/IRFU, France
SRNSFG, Georgia
Federal Ministry of Education & Research (BMBF)
HGF, Germany Max Planck Society
GSRI, Greece
RGC, China HongKong SAR, China
Israel Science Foundation Benoziyo Center, Israel
Istituto Nazionale di Fisica Nucleare (INFN)
Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science
CNRST, Morocco
Netherlands Organization for Scientific Research (NWO) Netherlands Government
RCN, Norway
MEiN, Poland
Portuguese Foundation for Science and Technology European Commission
MNE/IFA, Romania
JINR
Russian Federation
Ministry of Education, Science & Technological Development, Serbia
MSSR, Slovakia
Slovenian Research Agency - Slovenia MIZS, Slovenia
DSI/NRF, South Africa
Spanish Government
SRC, Sweden Wallenberg Foundation, Sweden
SERI, Switzerland Swiss National Science Foundation (SNSF) Canton of Bern, Switzerland Canton of Geneva, Switzerland
Ministry of Science and Technology, Taiwan
Ministry of Energy & Natural Resources - Turkey
UK Research & Innovation (UKRI)
Science & Technology Facilities Council (STFC) United States Department of Energy (DOE) National Science Foundation (NSF)
BCKDF, Canada CANARIE, Canada Compute Canada, Canada CRC, Canada
COST, European Union European Research Council (ERC) ERDF, European Union Horizon 2020, European Union Marie Sklodowska-Curie Actions, European Union
French National Research Agency (ANR)
German Research Foundation (DFG) Alexander von Humboldt Foundation
Herakleitos programme Thales Group Aristeia programme EU-ESF, Greece Greek NSRF, Greece
BSF-NSF, Israel German-Israeli Foundation for Scientific Research and Development
Norwegian Financial Mechanism 2014-2021, Norway
NCN, Poland Polish National Agency for Academic Exchange (NAWA)
La Caixa Banking Foundation, Spain CERCA Programme Generalitat de Catalunya, Spain PROMETEO Programme Generalitat Valenciana, Spain GenT Programme Generalitat Valenciana, Spain
Goran Gustafssons Stiftelse, Sweden
Royal Society of London
Leverhulme Trust
Austrian Science Fund (FWF)