Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at ffisffi p =13 TeV with the ATLAS Detector
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2020-12-18Referencia bibliográfica
Baringer, P. S., Murray, M. J., & CMS Collaboration. (2015). Search for long-lived neutral particles decaying to quark-antiquark pairs in proton-proton collisions at ffisffi s√= 8 TeV. [DOI: 10.1103/PhysRevLett.125.251802]
Patrocinador
ANPCyT; YerPhI, Armenia; Australian Research Council; BMWFW, Austria; 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); Departamento Administrativo de Ciencia, Tecnología e Innovación Colciencias; 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; Greek Ministry of Development-GSRT; RGC, China; Hong Kong 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; Ministry of Science and Higher Education, Poland; NCN, Poland; Portuguese Foundation for Science and Technology; MNE/IFA, Romania; JINR; MES of Russia; NRC KI, Russian Federation; MESTD, Serbia; MSSR, Slovakia; Slovenian Research Agency - Slovenia; MIZS, Slovenia; DST/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; IVADO, Canada; Beijing Municipal Science & Technology Commission; COST, European Union; European Union (EU) European Research Council (ERC); European Union (EU); Horizon 2020, European Union; European Union (EU); French National Research Agency (ANR); German Research Foundation (DFG); Alexander von Humboldt Foundation; Herakleitos programme - EU-ESF, Greece; Thales programme - EU-ESF, Greece; Aristeia programme - EU-ESF, Greece; Greek NSRF, Greece; BSF-NSF, Israel; German-Israeli Foundation for Scientific Research and Development; La Caixa Foundation; CERCA Programme Generalitat de Catalunya; PROMETEO Programme Generalitat Valenciana, Spain; PROMETEO Programme Generalitat Valenciana, Spain; Goran Gustafssons Stiftelse, Sweden; Royal Society of London; Leverhulme Trust; Austrian Science Fund (FWF); Azerbaijan National Academy of Sciences (ANAS); SSTC, Belarus; National Council for Scientific and Technological Development (CNPq)Resumen
This Letter presents a search for the production of new heavy resonances decaying into a Higgs boson
and a photon using proton-proton collision data at ffisffiffi
p
¼ 13 TeV collected by the ATLAS detector at the
LHC. The data correspond to an integrated luminosity of 139 fb−1. The analysis is performed by
reconstructing hadronically decaying Higgs boson ðH → b¯bÞ candidates as single large-radius jets. A
novel algorithm using information about the jet constituents in the center-of-mass frame of the jet is
implemented to identify the two b quarks in the single jet. No significant excess of events is observed above
the expected background. Upper limits are set on the production cross-section times branching fraction for
narrow spin-1 resonances decaying into a Higgs boson and a photon in the resonance mass range from 0.7
to 4 TeV, cross-section times branching fractions are excluded between 11.6 fb and 0.11 fb at a
95% confidence level.