Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at s√=8s=8 TeV with the ATLAS detector

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dc.contributor.author Amelung, Christoph
dc.contributor.author Amundsen, Glenn
dc.contributor.author Artoni, Giacomo
dc.contributor.author Barone, Gaetano
dc.contributor.author Bensinger, James R.
dc.contributor.author Bianchini, Louis
dc.contributor.author Blocker, Craig
dc.contributor.author Coffey, Laurel
dc.contributor.author Dhaliwal, Saminder
dc.contributor.author Fitzgerald, Eric
dc.contributor.author Sciolla, Gabriella
dc.contributor.author Venturini, Alessio
dc.contributor.author Zengel, Keith
dc.date.accessioned 2018-01-31T20:02:26Z
dc.date.available 2018-01-31T20:02:26Z
dc.date.issued 2016-01-28
dc.identifier.citation The ATLAS collaboration, Aad, G., Abbott, B. et al. J. High Energ. Phys. (2016) 2016: 172.
dc.identifier.issn 1126-6708
dc.identifier.issn 1029-8479
dc.identifier.uri http://hdl.handle.net/10192/35374
dc.description Published version can be found on Journal of High Energy Physics' site: https://link.springer.com/article/10.1007/JHEP01%282016%29172
dc.description.abstract A search for a Higgs boson produced via vector-boson fusion and decaying into invisible particles is presented, using 20.3 fb−1 of proton-proton collision data at a centre-of-mass energy of 8 TeV recorded by the ATLAS detector at the LHC. For a Higgs boson with a mass of 125 GeV, assuming the Standard Model production cross section, an upper bound of 0.28 is set on the branching fraction of H → invisible at 95% confidence level, where the expected upper limit is 0.31. The results are interpreted in models of Higgs-portal dark matter where the branching fraction limit is converted into upper bounds on the dark-matter-nucleon scattering cross section as a function of the dark-matter particle mass, and compared to results from the direct dark-matter detection experiments.
dc.description.sponsorship With 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; IN2P3-CNRS, CEA-DSM/IRFU, France; GNSF, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland; MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada, FQRNT, and the Ontario Innovation Trust, Canada; EPLANET, ERC, FP7, Horizon 2020 and Marie SkłodowskaCurie Actions, European Union; Investissements d’Avenir Labex and Idex, ANR, Region Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; the Royal Society and Leverhulme Trust, United Kingdom. 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.
dc.language English
dc.language.iso eng
dc.publisher Springer Verlag
dc.rights Copyright by CERN 2016
dc.subject Hadron-Hadron scattering
dc.subject Higgs physics
dc.subject ATLAS detector
dc.title Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at s√=8s=8 TeV with the ATLAS detector
dc.type Article
dc.identifier.doi https://doi.org/10.1007/JHEP01(2016)172


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