@misc{10481/67060, year = {2020}, month = {12}, url = {http://hdl.handle.net/10481/67060}, abstract = {The integrated fiducial cross-section and unfolded differential jet mass spectrum of high transverse momentum Z→bbdecays are measured in Zγevents in proton–proton collisions at √s=13TeV. The data analysed were collected between 2015 and 2016 with the ATLAS detector at the Large Hadron Collider and correspond to an integrated luminosity of 36.1fb−1. Photons are required to have a transverse momentum pT>175GeV. The Z→bbdecay is reconstructed using a jet with pT>200GeV, found with the anti-ktR =1.0jet algorithm, and groomed to remove soft and wide-angle radiation and to mitigate contributions from the underlying event and additional proton–proton collisions. Two different but related measurements are performed using two jet grooming definitions for reconstructing the Z→bbdecay: trimming and soft drop. These algorithms differ in their experimental and phenomenological implications regarding jet mass reconstruction and theoretical precision. To identify Zbosons, b-tagged R =0.2track-jets matched to the groomed large-Rcalorimeter jet are used as a proxy for the b-quarks. The signal yield is determined from fits of the data-driven background templates to the different jet mass distributions for the two grooming methods. Integrated fiducial cross-sections and unfolded jet mass spectra for each grooming method are compared with leading-order theoretical predictions. The results are found to be in good agreement with Standard Model expectations within the current statistical and systematic uncertainties.}, organization = {ANPCyT}, organization = {YerPhI, Armenia}, organization = {Australian Research Council}, organization = {BMWFW, Austria}, organization = {Austrian Science Fund (FWF)}, organization = {Azerbaijan National Academy of Sciences (ANAS)}, organization = {SSTC, Belarus}, organization = {National Council for Scientific and Technological Development (CNPq)}, organization = {Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)}, organization = {Natural Sciences and Engineering Research Council of Canada (NSERC)}, organization = {Canada Foundation for Innovation}, organization = {National Natural Science Foundation of China (NSFC)}, organization = {Departamento Administrativo de Ciencia, Tecnología e Innovación Colciencias}, organization = {Ministry of Education, Youth & Sports - Czech Republic Czech Republic Government}, organization = {Czech Republic Government}, organization = {DNRF, Denmark}, organization = {Danish Natural Science Research Council}, organization = {Centre National de la Recherche Scientifique (CNRS)}, organization = {CEA-DRF/IRFU, France}, organization = {Federal Ministry of Education & Research (BMBF)}, organization = {Max Planck Society}, organization = {Greek Ministry of Development-GSRT}, organization = {RGC, China}, organization = {Israel Science Foundation}, organization = {Benoziyo Center, Israel}, organization = {Istituto Nazionale di Fisica Nucleare (INFN)}, organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)}, organization = {Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science}, organization = {CNRST, Morocco}, organization = {RCN, Norway}, organization = {Ministry of Science and Higher Education, Poland}, organization = {NCN, Poland}, organization = {Portuguese Foundation for Science and Technology European Commission}, organization = {MNE/IFA, Romania}, organization = {MESTD, Serbia}, organization = {MSSR, Slovakia}, organization = {Slovenian Research Agency - Slovenia}, organization = {MIZS, Slovenia}, organization = {Spanish Government}, organization = {SRC, Sweden}, organization = {Wallenberg Foundation, Sweden}, organization = {SNSF Geneva, Switzerland}, organization = {Ministry of Science and Technology, Taiwan}, organization = {Ministry of Energy & Natural Resources - Turkey}, organization = {UK Research & Innovation (UKRI) Science & Technology Facilities Council (STFC)}, organization = {United States Department of Energy (DOE)}, organization = {National Science Foundation (NSF)}, organization = {BCKDF, Canada}, organization = {Beijing Municipal Science & Technology Commission}, organization = {European Cooperation in Science and Technology (COST)}, organization = {European Commission}, organization = {Horizon 2020 and Marie Sklodowska-Curie Actions, European Union}, organization = {French National Research Agency (ANR)}, organization = {German Research Foundation (DFG)}, organization = {Alexander von Humboldt Foundation}, organization = {Greek NSRF, Greece}, organization = {BSF-NSF, Israel}, organization = {German-Israeli Foundation for Scientific Research and Development}, organization = {La Caixa Banking Foundation, Spain}, organization = {CERCA Programme Generalitat de Catalunya, Spain}, organization = {PROMETEO and GenT Programmes Generalitat Valenciana, Spain}, organization = {Goran Gustafssons Stiftelse, Sweden}, organization = {Royal Society of London}, organization = {Leverhulme Trust}, organization = {NDGF (Denmark, Norway, Sweden)}, organization = {KIT/GridKA (Germany)}, organization = {INFN-CNAF (Italy)}, organization = {ASGC (Taiwan)}, organization = {BNL (USA)}, organization = {NRC, Canada}, organization = {ANID, Chile}, organization = {Chinese Academy of Sciences}, organization = {Ministry of Science and Technology, China}, organization = {SRNSFG, Georgia}, organization = {HGF, Germany}, organization = {Hong Kong SAR, China}, organization = {Netherlands Organization for Scientific Research (NWO) Netherlands Government}, organization = {JINR}, organization = {MES of Russia}, organization = {NRC KI}, organization = {Russian Federation}, organization = {DST/NRF, South Africa}, organization = {SERI, Geneva, Switzerland}, organization = {Cantons of Bern and Geneva, Switzerland}, organization = {Canarie, Canada}, organization = {Compute Canada, Canada}, organization = {CRC Canada}, organization = {IVADO, Canada}, organization = {European Research Council (ERC) European Commission}, organization = {EU-ESF, Greece}, organization = {ATLAS Tier-1 facilities at TRIUMF (Canada)}, organization = {CC-IN2P3 (France)}, organization = {Netherlands Government}, organization = {PIC (Spain)}, organization = {RAL (UK)}, publisher = {Elsevier}, title = {Measurement of the jet mass in high transverse momentum Z(-> b(b)over-bar)gamma production at root s=13 TeV using the ATLAS detector}, doi = {10.1016/j.physletb.2020.135991}, author = {Aad, G. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration}, }