Search for Minimal Supersymmetric Standard Model Higgs bosons H/A and for a Z boson in the ττ final state produced in pp collisions at √ s = 13 TeV with the ATLAS Detector

Article, Preprint English OPEN
Aaboud, M. et al. (ATLAS Collaboration) (2016)
  • Publisher: Springer Nature
  • Journal: (issn: 1434-6052)
  • Related identifiers: doi: 10.1140/epjc/s10052-016-4400-6
  • Subject: scattering [p p] | Subatomic Physics | branching ratio: upper limit [cross section] | ATLAS | mass dependence | Engineering (miscellaneous) | doublet [Higgs particle] | hadroproduction [Higgs particle] | Higgs bosons; Z boson, pp collisions; ATLAS Detector | QC | 530 | mass [boson] | High Energy Physics - Experiment | Settore FIS/04 - Fisica Nucleare e Subnucleare | heavy [resonance] | leptonic decay [resonance] | CERN LHC Coll | p p: colliding beams ; Higgs particle: hadroproduction ; Higgs particle: doublet ; tau: pair production ; boson: mass ; minimal supersymmetric standard model: parameter space ; cross section: branching ratio: upper limit ; boson: leptonic decay ; resonance: heavy ; resonance: leptonic decay ; flavor: model ; p p: scattering ; mass dependence ; ATLAS ; CERN LHC Coll ; background ; benchmark ; experimental results ; 13000 GeV-cms | model [flavor] | pair production [tau] | experimental results | /dk/atira/pure/researchoutput/pubmedpublicationtype/D016428 | Subatomär fysik | 13000 GeV-cms | benchmark | Science & Technology | leptonic decay [boson] | Settore FIS/01 - Fisica Sperimentale | background | colliding beams [p p] | Journal Article | Engineering (miscellaneous); Physics and Astronomy (miscellaneous) | parameter space [minimal supersymmetric standard model] | Physics and Astronomy (miscellaneous)
    • ddc: ddc:500.2 | ddc:530

A search for neutral Higgs bosons of the minimal supersymmetric standard model (MSSM) and for a heavneutral Z′ boson is performed using a data sample corresponding to an integrated luminosity of 3.2 fb−1 from proton–proton collisions at s√=13 TeV recorded by the ATLAS detector at the LHC. The heavy resonance is assumed to decay to a τ+τ− pair with at least one τ lepton decaying to final states with hadrons and a neutrino. The search is performed in the mass range of 0.2–1.2 TeV for the MSSM neutral Higgs bosons and 0.5–2.5 TeV for the heavy neutral Z′ boson. The data are in good agreement with the background predicted by the Standard Model. The results are interpreted in MSSM and Z′ benchmark scenarios. The most stringent constraints on the MSSM mA–tanβ space exclude at 95 % confidence level (CL) tanβ>7.6 for mA=200 GeV in the mmod+h MSSM scenario. For the Sequential Standard Model, a Z′SSM mass up to 1.90 TeV is excluded at 95 % CL and masses up to 1.82–2.17 TeV are excluded for a Z′SFM of the strong flavour model. 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 and DNSRC, 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 MIZS, 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 Sklodowska-Curie 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; Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN, 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 (Spa
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