Search for a new resonance decaying to a W or Z boson and a Higgs boson in the ℓℓ/ℓν/νν+bb¯final states with the ATLAS detector
Castro, Nuno Filipe Silva Fernandes
- Publisher: Springer Verlag
(issn: 1434-6052, eissn: 1434-6052)
Regular Article - Experimental Physics | scattering [p p] | triplet | Higgs boson; ATLAS detector | Z0 --> neutrino antineutrino | GAUGE-MODEL; LHC | leptonic decay [Z0] | ATLAS | Particle Physics - Experiment | Engineering (miscellaneous) | Higgs particle | leptonic decay [W] | hadroproduction [Higgs particle] | associated production [Z0] | QC | 530 | Physical Sciences | info:eu-repo/classification/ddc/ddc:530 | High Energy Physics - Experiment | Settore FIS/04 - Fisica Nucleare e Subnucleare | CERN LHC Coll | (Z0 Higgs particle) [mass spectrum] | narrow resonance | Physics and Astronomy (miscellaneous); Engineering (miscellaneous) | (W Higgs particle) [mass spectrum] | Z0 --> lepton+ lepton- | 8000 GeV-cms | info:eu-repo/classification/ddc/ddc:500.2 | multiplicity [lepton] | W --> lepton neutrino | hadronic decay [Higgs particle] | massive [resonance] | Higgs particle --> bottom anti-bottom | Standard Model | associated production [W] | Fysik | Science & Technology | background | Settore FIS/01 - Fisica Sperimentale | Large Hadron Collider | colliding beams [p p] | mass spectrum | Physics and Astronomy (miscellaneous) | Higgs Boson | Physics and Astronomy (miscellaneous); LHC; ATLAS | technicolor
A search for a new resonance decaying to a W or Z boson and a Higgs boson in the ℓℓ/ℓν/νν+bb¯ final states is performed using 20.3 fb−1 of pp collision data recorded at s√= 8 TeV with the ATLAS detector at the Large Hadron Collider. The search is conducted by examining the WH/ZH invariant mass distribution for a localized excess. No significant deviation from the Standard Model background prediction is observed. The results are interpreted in terms of constraints on the Minimal Walking Technicolor model and on a simplified approach based on a phenomenological Lagrangian of Heavy Vector Triplets. We 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; RGC, Hong Kong SAR, China; ISF, MINERVA, GIF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; BRF and RCN, Norway; MNiSW and NCN, Poland; GRICES and FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MIZS, Slovenia; DST/NRF, South Africa; MINECO, 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.