Search for high-mass dilepton resonances in pp collisions at √s=8 TeV with the ATLAS detector
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American Physical Society
Aad, G., Abbott, B., Abdallah, J., Khalek, S. A., Aben, R., Abi, B., ... & Abreu, R. (2014). Search for high-mass dilepton resonances in p p collisions at s= 8 TeV with the ATLAS detector. Physical Review D, 90(5), 052005. [https://doi.org/10.1103/PhysRevD.90.052005]
SponsorshipANPCyT; 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, Chile; 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 Research Council (ERC); European Union (EU); 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, Serbia; 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, Switzerland; Geneva, Switzerland; National Science Council of Taiwan; Ministry of Energy & Natural Resources - Turkey; Royal Society of London; Leverhulme Trust; United States Department of Energy (DOE); National Science Foundation (NSF); Science & Technology Facilities Council (STFC) ST/I000178/1 ST/K00140X/1 ATLAS ST/M000664/1 ST/M000761/1 ST/L001179/1 ST/I000186/1 GRIDPP ST/K000713/1 ST/K001310/1 ATLAS Upgrades ST/J00474X/1 ST/J004928/1 ATLAS Upgrade ST/L003112/1 ST/L001179/1 ATLAS Upgrade ST/G502320/1 ST/I006056/1 ATLAS Upgrades ST/J005487/1 ST/J005533/1 ST/J500641/1 ST/K50208X/1 ST/K000705/1 ST/K001310/1 ATLAS ST/K001337/1 ST/K001329/1 ST/K001337/1 ATLAS ATLAS ST/M002306/1 ST/L001179/1 ATLAS Upgrades ST/K00137X/1 ST/K001248/1 ST/H001026/1 ST/K001310/1 LHCb ST/M001474/1 ST/I005803/1 ST/K001310/1 ST/H00100X/2 ST/L006464/1 PP/E003087/1 ST/H00095X/1 ST/M002306/1 ATLAS Upgrades ST/L001195/1 ST/L000970/1 ST/H001026/2 ST/G50228X/1 PP/E002846/1 PP/D002915/1 ST/J004928/1 ST/K001302/1 ST/K001310/1 LHCb Upgrades ST/I00372X/1 GRIDPP ST/J005525/1 ST/F00754X/1 ST/M002071/1 ATLAS Upgrades ST/L003325/1 ST/K001426/1 ATLAS ST/M007103/1 ATLAS Upgrades ST/M003213/1 ST/L006480/1 ST/L00352X/1 ST/K001264/1 ATLAS PP/E000487/1 ST/I006056/1 ATLAS Upgrade ST/I006080/1 ST/J004944/1 ST/J501074/1 ST/K003658/1 PP/E000355/1 ST/H00095X/2 ST/I00372X/1 ST/H00100X/1 ST/I505756/1 ST/K001388/1 ST/M001733/1 ST/I006056/1 1091701 ST/K003658/1 GRIDPP ST/L000970/1 ATLAS Upgrade ST/K502236/1 ST/K001418/1 ST/J005576/1 ST/J00474X/1 ATLAS Upgrades PP/E000444/1 ST/F007418/1 ST/I005803/1 GRIDPP ST/H001069/2 ST/K00140X/1 ST/L001209/1 ATLAS Upgrades
The ATLAS detector at the Large Hadron Collider is used to search for high-mass resonances decaying to dielectron or dimuon final states. Results are presented from an analysis of proton-proton (pp) collisions at a center-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb−1 in the dimuon channel. A narrow resonance with Standard Model Z couplings to fermions is excluded at 95% confidence level for masses less than 2.79 TeV in the dielectron channel, 2.53 TeV in the dimuon channel, and 2.90 TeV in the two channels combined. Limits on other model interpretations are also presented, including a grand-unification model based on the E6 gauge group, Z∗ bosons, minimal Z' models, a spin-2 graviton excitation from Randall-Sundrum models, quantum black holes, and a minimal walking technicolor model with a composite Higgs boson.