Search for Scalar Diphoton Resonances in the Mass Range 65–600 GeV with the ATLAS Detector in pp Collision Data at √s=8  TeV

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URI: http://hdl.handle.net/10481/63047
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Autor
Aad, G.; Aguilar Saavedra, Juan Antonio; Atlas Collaboration
Editorial
American Physical Society
Fecha
2014-10-20
Referencia bibliográfica
Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Aben, R., Abi, B., ... & Abreu, R. (2014). Search for Scalar Diphoton Resonances in the Mass Range 65–600 GeV with the ATLAS Detector in p p Collision Data at s= 8 TeV. Physical review letters, 113(17), 171801. [https://doi.org/10.1103/PhysRevLett.113.171801]
Patrocinador
ANPCyT; YerPhI, Armenia; Australian Research Council; BMWF, Austria; Austrian Science Fund (FWF); Azerbaijan National Academy of Sciences (ANAS); SSTC, Belarus; National Council for Scientific and Technological Development (CNPq); Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP); Natural Sciences and Engineering Research Council of Canada; NRC, Canada; Canada Foundation for Innovation; CERN; Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT); Chinese Academy of Sciences; Ministry of Science and Technology, China; National Natural Science Foundation of China; Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias; Ministry of Education, Youth & Sports - Czech Republic Czech Republic Government; DNRF, Denmark; Danish Natural Science Research Council; Lundbeckfonden; European Union (EU); European Union (EU) European Research Council (ERC); Centre National de la Recherche Scientifique (CNRS); CEA-DSM/IRFU, France; GNSF, Georgia; Federal Ministry of Education & Research (BMBF); German Research Foundation (DFG); HGF, Germany; Max Planck Society; Alexander von Humboldt Foundation; Greek Ministry of Development-GSRT; NSRF, Greece; Israel Science Foundation; MINERVA, Israel; German-Israeli Foundation for Scientific Research and Development; I-CORE, Israel; Benoziyo Center, Israel; Istituto Nazionale di Fisica Nucleare (INFN); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Science; CNRST, Morocco; FOM (The Netherlands) Netherlands Government; Netherlands Organization for Scientific Research (NWO) Netherlands Government; BRF, Norway; RCN, Norway; Ministry of Science and Higher Education, Poland; NCN, Poland; GRICES, Portugal; Portuguese Foundation for Science and Technology; MNE/IFA, Romania; Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; Slovenian Research Agency - Slovenia; MIZS, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC, Sweden; Wallenberg Foundation, Sweden; SER, Switzerland; Swiss National Science Foundation (SNSF); Cantons of Bern and Geneva, Switzerland; National Science Council of Taiwan; Ministry of Energy & Natural Resources - Turkey; The Royal Society, United Kingdom; Leverhulme Trust; United States Department of Energy (DOE); National Science Foundation (NSF); Science & Technology Facilities Council (STFC) ST/L001179/1 ATLAS Upgrade ST/K003658/1 ST/K001388/1 ST/K001310/1 LHCb ST/K00073X/1 ST/I005803/1 PP/E000355/1 ST/L006464/1 ST/L001195/1 ST/K00140X/1 ST/I005811/1 PP/E002846/1 ATLAS ST/L006480/1 ST/J00474X/1 ST/H001042/2 ST/I00372X/1 PP/E003087/1 ST/M001474/1 ST/K001337/1 ST/I000186/1 PP/E002757/1 ST/H001026/1 ST/K000705/1 ST/I006056/1 ST/J500641/1 ST/K001361/1 ATLAS ST/J004928/1 ST/K001310/1 LHCb Upgrades ST/K00137X/1 ST/M001733/1 ST/L000970/1 ST/K003437/1 GRIDPP ST/K001264/1 ATLAS ST/K00140X/1 ATLAS ST/K001310/1 ST/I00372X/1 GRIDPP ST/I006080/1 ST/K501840/1 ST/I006056/1 ATLAS Upgrade ST/K001361/1 ST/K001361/1 ATLAS Upgrades ST/K001361/1 MINOS/MINOS+ ST/K003437/1 ST/K001337/1 ATLAS ST/J002798/1 PP/E000347/1 ST/K000713/1 ST/G50228X/1 ST/K001329/1 ATLAS ST/H001069/2 ST/I505756/1 ST/M007103/1 ATLAS Upgrades ST/F00754X/1 ST/J005533/1 ST/K001302/1 ST/M000761/1 ST/K001248/1 ST/K001361/1 LHCb Upgrades ST/L001179/1 ST/L001209/1 ATLAS Upgrades ST/J004928/1 ATLAS Upgrade ST/H001026/2 ST/I006056/1 ATLAS Upgrades ST/L001144/1 ST/L001179/1 ATLAS Upgrades ST/K001361/1 LHCb ST/K502236/1 ST/K000659/1 ST/J005525/1 ST/M002306/1 ST/J004944/1 ST/H00095X/2 ST/K001310/1 ATLAS ST/K003658/1 GRIDPP ST/L000970/1 ATLAS Upgrade ST/L003112/1 ST/L003325/1 ST/J00474X/1 ATLAS Upgrades ST/G502320/1 ST/M003213/1 ST/M002306/1 ATLAS Upgrades ST/K001310/1 ATLAS Upgrades ST/H001093/2 ST/H001093/1 ST/H00100X/1 PP/E000487/1 ST/M001431/1 ST/M000664/1 ST/K001418/1 ST/J005576/1 ST/K50208X/1 ST/J005487/1 ST/H00095X/1 ST/J005460/1 ST/K501840/1 GRIDPP ST/K001426/1 ATLAS ST/H00100X/2 ST/L00352X/1 PP/E000444/1 ST/I000178/1 ST/H001042/1 ST/J501074/1 ST/I005803/1 GRIDPP ST/M002071/1 ATLAS Upgrades GRIDPP PP/D002915/1 ST/F007418/1; ICREA
Resumen
A search for scalar particles decaying via narrow resonances into two photons in the mass range 65–600 GeV is performed using 20.3  fb−1 of √s=8  TeV pp collision data collected with the ATLAS detector at the Large Hadron Collider. The recently discovered Higgs boson is treated as a background. No significant evidence for an additional signal is observed. The results are presented as limits at the 95% confidence level on the production cross section of a scalar boson times branching ratio into two photons, in a fiducial volume where the reconstruction efficiency is approximately independent of the event topology. The upper limits set extend over a considerably wider mass range than previous searches.
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