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Observation and measurement of Higgs boson decays to WW∗with the ATLAS detector

dc.contributor.authorAad, G.
dc.contributor.authorArnal, V.
dc.contributor.authorBarreiro Alonso, Fernando 
dc.contributor.authorCantero, J.
dc.contributor.authorDe La Torre, H.
dc.contributor.authorPeso Malagón, José del 
dc.contributor.authorGlasman Kuguel, Claudia Beatriz 
dc.contributor.authorLlorente Merino, J.
dc.contributor.authorTerrón Cuadrado, Juan 
dc.contributor.authorATLAS Collaboration
dc.contributor.otherUAM. Departamento de Física Teóricaes_ES
dc.date.accessioned2016-11-03T16:17:12Z
dc.date.available2016-11-03T16:17:12Z
dc.date.issued2015-07-16
dc.identifier.citationPhysical Review D 92.1 (2015): 012006es_ES
dc.identifier.issn1550-7998 (print)es_ES
dc.identifier.issn1550-2368 (online)es_ES
dc.identifier.urihttp://hdl.handle.net/10486/674745
dc.descriptionArtículo 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 UAMes_ES
dc.description.abstractWe report the observation of Higgs boson decays to WW∗ based on an excess over background of 6.1 standard deviations in the dilepton final state, where the Standard Model expectation is 5.8 standard deviations. Evidence for the vector-boson fusion (VBF) production process is obtained with a significance of 3.2 standard deviations. The results are obtained from a data sample corresponding to an integrated luminosity of 25 fb-1from √s = 7 and 8 TeV pp collisions recorded by the ATLAS detector at the LHC. For a Higgs boson mass of 125.36 GeV, the ratio of the measured value to the expected value of the total production cross section times branching fraction is 1.09+0.16 -0.15(stat)+0.17 -0.14(syst). The corresponding ratios for the gluon fusion and vector-boson fusion production mechanisms are 1.02 ± 0.19(stat)+0.22 -0.18(syst) and 1.27+0.44 -0.40(stat)+0.30 -0.21(syst), respectively. At √s = 8 TeV, the total production cross sections are measured to be σ(gg→H→WW∗)=4.6±0.9(stat)+0.8 -0.7(syst) pb and σ(VBF H → WW∗)=0.51+0.17 -0.15(stat)+0.13 -0.08(syst)pb. The fiducial cross section is determined for the gluon-fusion process in exclusive final states with zero or one associated jetes_ES
dc.description.sponsorshipWe thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, 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, ERC and NSRF, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT and NSRF, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and 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 MIZŠ, 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 worldwidees_ES
dc.format.extent84 pag.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.relation.ispartofPhysical Review D: Particles, Fields, Gravitation and Cosmologyes_ES
dc.rights© 2015 CERN, for the ATLAS Collaborationes_ES
dc.titleObservation and measurement of Higgs boson decays to WW∗with the ATLAS detectores_ES
dc.typearticlees_ES
dc.subject.ecienciaFísicaes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1103/PhysRevD.92.012006es_ES
dc.identifier.doi10.1103/PhysRevD.92.012006es_ES
dc.identifier.publicationfirstpage012006es_ES
dc.identifier.publicationissue1es_ES
dc.identifier.publicationlastpage012006es_ES
dc.identifier.publicationvolume92es_ES
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/246806es_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_ES
dc.rights.accessRightsopenAccesses_ES
dc.authorUAMBarreiro Alonso, Fernando (259561)
dc.facultadUAMFacultad de Ciencias


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