@misc{10481/72276,
year = {2021},
month = {11},
url = {http://hdl.handle.net/10481/72276},
abstract = {A measurement of prompt photon-pair production in proton-proton collisions at root s = 13 TeV is presented. The data were recorded by the ATLAS detector at the LHC with an integrated luminosity of 139 fb(-1). Events with two photons in the wellinstrumented region of the detector are selected. The photons are required to be isolated and have a transverse momentum of p(T,gamma 1(2)) > 40 (30) GeV for the leading (sub-leading) photon. The differential cross sections as functions of several observables for the diphoton system are measured and compared with theoretical predictions from state-of-the-art Monte Carlo and fixed-order calculations. The QCD predictions from next-to-next-to-leadingorder calculations and multi-leg merged calculations are able to describe the measured integrated and differential cross sections within uncertainties, whereas lower-order calculations show significant deviations, demonstrating that higher-order perturbative QCD corrections are crucial for this process. The resummed predictions with parton showers additionally provide an excellent description of the low transverse-momentum regime of the diphoton system.},
organization = {ANPCyT},
organization = {YerPhI, Armenia},
organization = {Australian Research Council},
organization = {BMWFW, Austria	
Austrian Science Fund (FWF)},
organization = {Azerbaijan National Academy of Sciences (ANAS)},
organization = {SSTC, Belarus},
organization = {Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)	
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)},
organization = {Natural Sciences and Engineering Research Council of Canada (NSERC)},
organization = {NRC, Canada	
Canada Foundation for Innovation},
organization = {CERN},
organization = {ANID, Chile},
organization = {Chinese Academy of Sciences	
Ministry of Science and Technology, China	
National Natural Science Foundation of China (NSFC)},
organization = {Minciencias, Colombia},
organization = {Ministry of Education, Youth & Sports - Czech Republic
Czech Republic Government},
organization = {DNRF, Denmark	
Danish Natural Science Research Council},
organization = {Centre National de la Recherche Scientifique (CNRS)	
CEA-DRF/IRFU, France},
organization = {SRNSFG, Georgia},
organization = {Federal Ministry of Education & Research (BMBF)	
HGF, Germany	
Max Planck Society},
organization = {GSRI, Greece},
organization = {RGC, China	
Hong Kong SAR, China},
organization = {Israel Science Foundation	
Benoziyo Center, Israel},
organization = {Istituto Nazionale di Fisica Nucleare (INFN)},
organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)	

Japan Society for the Promotion of Science},
organization = {CNRST, Morocco},
organization = {Netherlands Organization for Scientific Research (NWO)
Netherlands Government},
organization = {RCN, Norway},
organization = {MEiN, Poland},
organization = {Portuguese Foundation for Science and Technology
European Commission},
organization = {MNE/IFA, Romania},
organization = {JINR},
organization = {Russian Federation	
NRC KI, Russian Federation},
organization = {Ministry of Education, Science & Technological Development, Serbia},
organization = {MSSR, Slovakia},
organization = {Slovenian Research Agency - Slovenia	
MIZS, Slovenia},
organization = {DSI/NRF, South Africa},
organization = {Spanish Government},
organization = {SRC, Sweden	
Wallenberg Foundation, Sweden},
organization = {SERI, Switzerland	
Swiss National Science Foundation (SNSF)	
Canton of Bern, Switzerland},
organization = {Ministry of Science and Technology, Taiwan},
organization = {Ministry of Energy & Natural Resources - Turkey},
organization = {UK Research & Innovation (UKRI)},
organization = {Science & Technology Facilities Council (STFC)},
organization = {United States Department of Energy (DOE)},
organization = {National Science Foundation (NSF)},
organization = {BCKDF, Canada	
CANARIE, Canada	
Compute Canada, Canada	
CRC, Canada},
organization = {COST, European Union	
European Research Council (ERC)	
ERDF, European Union	
Marie Sklodowska-Curie Actions, European Union	
Horizon 2020, European Union},
organization = {French National Research Agency (ANR)},
organization = {German Research Foundation (DFG)	
Alexander von Humboldt Foundation},
organization = {Herakleitos programme	
Aristeia programme	
European Commission	
Greek NSRF, Greece},
organization = {BSF-NSF, Israel	
German-Israeli Foundation for Scientific Research and Development},
organization = {Norwegian Financial Mechanism 2014-2021, Norway},
organization = {NCN, Poland	
Polish National Agency for Academic Exchange (NAWA)},
organization = {La Caixa Banking Foundation, Spain	
CERCA Programme Generalitat de Catalunya, Spain	
GenT Programme Generalitat Valenciana, Spain},
organization = {Goran Gustafssons Stiftelse, Sweden},
organization = {Leverhulme Trust},
organization = {Royal Society of London},
organization = {Canton of Geneva, Switzerland},
organization = {PROMETEO Programme Generalitat Valenciana, Spain},
organization = {Thales Group},
publisher = {Springer},
keywords = {Hadron-Hadron scattering (experiments)},
keywords = {Photon production},
keywords = {Proton-proton scattering},
keywords = {QCD},
title = {Measurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detector},
doi = {10.1007/JHEP11(2021)169},
author = {Aad, G. and Aguilar Saavedra, Juan Antonio and Rodríguez Chala, Mikael and Atlas Collaboration},
}