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Taylor, Frank E. (2012)
Publisher: Elsevier
Languages: English
Types: Article
Subjects: Partícules (Física nuclear), Particle Physics - Experiment, Proton-Proton Collisions, 530, QC, Hadron Colliders, High Energy Physics - Experiment, Detectors de radiació, Transverse-Momentum, Higgs boson; ATLAS detector; LHC, Broken Symmetries, Gauge Fields, Nuclear and High Energy Physics, Col·lisions (Física nuclear), QCD Corrections, Massless Particles, Root-S=7 Tev, Parton Distributions, /dk/atira/pure/subjectarea/asjc/3100/3106, Science & Technology, Física, Settore FIS/01 - Fisica Sperimentale, :Ciências Físicas [Ciências Naturais], Acceleradors de partícules, Cross-Sections
ddc: ddc:530
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM A search for the Standard Model Higgs boson in proton–proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb−1 collected at √ s = 7 TeV in 2011 and 5.8 fb−1 at √ s = 8 TeV in 2012. Individual searches in the channels H → Z Z(∗) →4ℓ, H →γγ and H →WW(∗) →eνμν in the 8 TeV data are combined with previously published results of searches for H → Z Z(∗), WW(∗), bb and τ+τ− in the 7 TeV data and results from improved analyses of the H → Z Z(∗) →4ℓ and H →γγ channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0±0.4 (stat)±0.4 (sys) GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7×10−9, is compatible with the production and decay of the Standard Model Higgs boson The results reported in this Letter would not have been possible without the outstanding performance of the LHC. We warmly thank CERN and the entire LHC exploitation team, including the operation, technical and infrastructure groups, and all the people who have contributed to the conception, design and construction of this superb accelerator. We thank also the support staff at our institutions without whose excellent contributions ATLAS could not have been successfully constructed or operated so efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; EPLANET and ERC, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide

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