Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

The ATLAS experiment at the CERN Large Hadron Collider has performed searches for new, heavy bosons decaying to WW, WZ and ZZ final states in multiple decay channels using 20.3 fb −1 of pp collision data at s=8 TeV. In the current study, the results of these searches are combined to provide a more stringent test of models predicting heavy resonances with couplings to vector bosons. Direct searches for a charged diboson resonance decaying to WZ in the ℓνℓ ′ ℓ ′ (ℓ=μ,e), ℓℓqq¯ ℓνqq¯ and fully hadronic final states are combined and upper limits on the rate of production times branching ratio to the WZ bosons are compared with predictions of an extended gauge model with a heavy W ′ boson. In addition, direct searches for a neutral diboson resonance decaying to WW and ZZ in the ℓℓqq¯ ℓνqq¯ and fully hadronic final states are combined and upper limits on the rate of production times branching ratio to the WW and ZZ bosons are compared with predictions for a heavy, spin-2 graviton in an extended Randall–Sundrum model where the Standard Model fields are allowed to propagate in the bulk of the extra dimension. © 2016 CERN for the benefit of the ATLAS Collaboration

Registro:

Documento: Artículo
Título:Combination of searches for WW, WZ, and ZZ resonances in pp collisions at √s=8 TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2872 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2872 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2016
Volumen:755
Página de inicio:285
Página de fin:305
DOI: http://dx.doi.org/10.1016/j.physletb.2016.02.015
Título revista:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Título revista abreviado:Phys Lett Sect B Nucl Elem Part High-Energy Phys
ISSN:03702693
CODEN:PYLBA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v755_n_p285_Aad

Referencias:

  • Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC (2012) Phys. Lett. B, 716, pp. 1-29. , arXiv:1207.7214 [hep-ex]
  • Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC (2012) Phys. Lett. B, 716, pp. 30-61. , arXiv:1207.7235 [hep-ex]
  • Evidence for the spin-0 nature of the Higgs boson using ATLAS data (2013) Phys. Lett. B, 726, pp. 120-144. , arXiv:1307.1432 [hep-ex]
  • Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs (2013) Phys. Rev. Lett., 110. , arXiv:1212.6639 [hep-ex]
  • Altarelli, G., Mele, B., Ruiz-Altaba, M., Searching for new heavy vector bosons in pp¯ colliders (1989) Z. Phys. C, 45, p. 109
  • Eichten, E., Super collider physics (1984) Rev. Mod. Phys., 56, pp. 579-707
  • Quigg, C., Gauge Theories of the Strong, Weak, and Electromagnetic Interactions (2013), p. 227. , Princeton University Press; Randall, L., Sundrum, R., A large mass hierarchy from a small extra dimension (1999) Phys. Rev. Lett., 83, pp. 3370-3373. , arXiv:hep-ph/9905221
  • Randall, L., Sundrum, R., An alternative to compactification (1999) Phys. Rev. Lett., 83, pp. 4690-4693. , arXiv:hep-th/9906064
  • Davoudiasl, H., Hewett, J., Rizzo, T., Experimental probes of localized gravity: on and off the wall (2001) Phys. Rev. D, 63. , arXiv:hep-ph/0006041
  • Lane, K., Mrenna, S., The collider phenomenology of technihadrons in the technicolor straw man model (2003) Phys. Rev. D, 67. , arXiv:hep-ph/0210299
  • Eichten, E., Lane, K., Low-scale technicolor at the Tevatron and LHC (2008) Phys. Lett. B, 669, pp. 235-238. , arXiv:0706.2339 [hep-ph]
  • Sannino, F., Tuominen, K., Orientifold theory dynamics and symmetry breaking (2005) Phys. Rev. D, 71. , arXiv:hep-ph/0405209
  • Belyaev, A., Technicolor walks at the LHC (2009) Phys. Rev. D, 79. , arXiv:0809.0793 [hep-ph]
  • Agashe, K., Contino, R., Pomarol, A., The minimal composite Higgs model (2005) Nucl. Phys. B, 719, pp. 165-187. , arXiv:hep-ph/0412089
  • Giudice, G.F., The strongly-interacting light Higgs (2007) J. High Energy Phys., 6. , arXiv:hep-ph/0703164
  • Search for new particles in events with one lepton and missing transverse momentum in pp collisions at √s=8 TeV with the ATLAS detector (2014) J. High Energy Phys., 9. , arXiv:1407.7494 [hep-ex]
  • Search for physics beyond the standard model in final states with a lepton and missing transverse energy in proton–proton collisions at √s=8 TeV (2015) Phys. Rev. D, 91. , arXiv:1408.2745 [hep-ex]
  • Search for WZ resonances in the fully leptonic channel using pp collisions at √s=8 TeV with the ATLAS detector (2014) Phys. Lett. B, 737, pp. 223-243. , arXiv:1406.4456 [hep-ex]
  • Search for new resonances decaying via WZ to leptons in proton–proton collisions at √s=8 TeV (2015) Phys. Lett. B, 740, pp. 83-104. , arXiv:1407.3476 [hep-ex]
  • Search for resonant diboson production in the ℓℓqq¯ final state in pp collisions at √s=8 TeV with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 69. , arXiv:1409.6190 [hep-ex]
  • Search for production of WW/WZ resonances decaying to a lepton, neutrino and jets in pp collisions at √s=8 TeV with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 209. , arXiv:1503.04677 [hep-ex]
  • Search for high-mass diboson resonances with boson-tagged jets in proton–proton collisions at √s=8 TeV with the ATLAS detector (2015), arXiv:1506.00962 [hep-ex]; Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at √s=8 TeV (2014) J. High Energy Phys., 8. , arXiv:1405.1994 [hep-ex]
  • Agashe, K., Warped gravitons at the LHC and beyond (2007) Phys. Rev. D, 76. , arXiv:hep-ph/0701186
  • Antipin, O., Atwood, D., Soni, A., Search for RS gravitons via W L W L decays (2008) Phys. Lett. B, 666, pp. 155-161. , arXiv:0711.3175 [hep-ph]
  • Antipin, O., Soni, A., Towards establishing the spin of warped gravitons (2008) J. High Energy Phys., 10. , arXiv:0806.3427 [hep-ph]
  • Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at √s=8 TeV (2014) J. High Energy Phys., 8. , arXiv:1405.3447 [hep-ex]
  • Search for an additional, heavy Higgs boson in the H→ZZ decay channel at √s=8 TeV in pp collision data with the ATLAS detector (2015), arXiv:1507.05930 [hep-ex]; Search for dark matter in events with a hadronically decaying W or Z boson and missing transverse momentum in pp collisions at √s=8 TeV with the ATLAS detector (2014) Phys. Rev. Lett., 112. , arXiv:1309.4017 [hep-ex]
  • Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at √s=8 TeV with the ATLAS detector (2014) Phys. Rev. D, 90. , arXiv:1404.0051 [hep-ex]
  • The ATLAS experiment at the CERN Large Hadron Collider (2008) J. Instrum., 3
  • Performance of the ATLAS trigger system in 2010 (2012) Eur. Phys. J. C, 72, p. 1849. , arXiv:1110.1530 [hep-ex]
  • Improved luminosity determination in pp collisions at √s=7 TeV using the ATLAS detector at the LHC (2013) Eur. Phys. J. C, 73, p. 2518. , arXiv:1302.4393 [hep-ex]
  • Belyaev, A., Christensen, N.D., Pukhov, A., CalcHEP 3.4 for collider physics within and beyond the Standard Model (2013) Comput. Phys. Commun., 184, pp. 1729-1769. , arXiv:1207.6082 [hep-ph]
  • Sjöstrand, T., Mrenna, S., Skands, P.Z., PYTHIA 6.4 physics and manual (2006) J. High Energy Phys., 5. , arXiv:hep-ph/0603175
  • Pumplin, J., New generation of parton distributions with uncertainties from global QCD analysis (2002) J. High Energy Phys., 7. , arXiv:hep-ph/0201195
  • Martin, A.D., Parton distributions for the LHC (2009) Eur. Phys. J. C, 63, pp. 189-285. , arXiv:0901.0002 [hep-ph]
  • Gleisberg, T., Event generation with SHERPA 1.1 (2009) J. High Energy Phys., 2. , arXiv:0811.4622 [hep-ph]
  • Lai, H.-L., New parton distributions for collider physics (2010) Phys. Rev. D, 82. , arXiv:1007.2241 [hep-ph]
  • Mangano, M.L., ALPGEN, a generator for hard multiparton processes in hadronic collisions (2003) J. High Energy Phys., 7. , arXiv:hep-ph/0206293
  • Catani, S., Vector boson production at hadron colliders: a fully exclusive QCD calculation at NNLO (2009) Phys. Rev. Lett., 103. , arXiv:0903.2120 [hep-ph]
  • Frixione, S., Webber, B.R., Matching NLO QCD computations and parton shower simulations (2002) J. High Energy Phys., 6. , arXiv:hep-ph/0204244
  • Frixione, S., Nason, P., Webber, B.R., Matching NLO QCD and parton showers in heavy flavor production (2003) J. High Energy Phys., 8. , arXiv:hep-ph/0305252
  • Corcella, G., HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) (2001) J. High Energy Phys., 1. , arXiv:hep-ph/0011363
  • Butterworth, J.M., Forshaw, J.R., Seymour, M.H., Multiparton interactions in photoproduction at HERA (1996) Z. Phys. C, 72, pp. 637-646. , arXiv:hep-ph/9601371
  • Cacciari, M., Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation (2012) Phys. Lett. B, 710, pp. 612-622. , arXiv:1111.5869 [hep-ph]
  • Bärnreuther, P., Czakon, M., Mitov, A., Percent level precision physics at the Tevatron: first genuine NNLO QCD corrections to qq¯→tt¯+X (2012) Phys. Rev. Lett., 109. , arXiv:1204.5201 [hep-ph]
  • Czakon, M., Mitov, A., NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels (2012) J. High Energy Phys., 12. , arXiv:1207.0236 [hep-ph]
  • Czakon, M., Mitov, A., NNLO corrections to top pair production at hadron colliders: the quark–gluon reaction (2013) J. High Energy Phys., 1. , arXiv:1210.6832 [hep-ph]
  • Czakon, M., Fiedler, P., Mitov, A., Total top-quark pair-production cross section at hadron colliders through O(α S 4 ) (2013) Phys. Rev. Lett., 110. , arXiv:1303.6254 [hep-ph]
  • Czakon, M., Mitov, A., Top++: a program for the calculation of the top-pair cross-section at hadron colliders (2014) Comput. Phys. Commun., 185, p. 2930. , arXiv:1112.5675 [hep-ph]
  • Kersevan, B.P., Richter-Was, E., The Monte Carlo event generator AcerMC versions 2.0 to 3.8 with interfaces to PYTHIA 6.4, HERWIG 6.5 and ARIADNE 4.1 (2013) Comput. Phys. Commun., 184, pp. 919-985. , arXiv:hep-ph/0405247
  • Frixione, S., Nason, P., Oleari, C., Matching NLO QCD computations with parton shower simulations: the POWHEG method (2007) J. High Energy Phys., 11. , arXiv:0709.2092 [hep-ph]
  • Alioli, S., A general framework for implementing NLO calculations in shower Monte Carlo programs: the POWHEG BOX (2010) J. High Energy Phys., 6. , arXiv:1002.2581 [hep-ph]
  • Campbell, J.M., Ellis, R.K., An update on vector boson pair production at hadron colliders (1999) Phys. Rev. D, 60. , arXiv:hep-ph/9905386
  • The ATLAS simulation infrastructure (2010) Eur. Phys. J. C, 70, pp. 823-874. , arXiv:1005.4568 [physics.ins-det]
  • Agostinelli, S., GEANT4: a simulation toolkit (2003) Nucl. Instrum. Methods, Sect. A, 506, pp. 250-303
  • Summary of ATLAS Pythia 8 tunes (2012), https://cds.cern.ch/record/1474107, ATL-PHYS-PUB-2012-003, ATL-COM-PHYS-2012-738; Electron reconstruction and identification efficiency measurements with the ATLAS detector using the 2011 LHC proton–proton collision data (2014) Eur. Phys. J. C, 74, p. 2941. , arXiv:1404.2240 [hep-ex]
  • Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton–proton collision data (2014) Eur. Phys. J. C, 74, p. 3130. , arXiv:1407.3935 [hep-ex]
  • Lampl, W., Calorimeter clustering algorithms: description and performance (2008), http://cds.cern.ch/record/1099735, ATL-LARG-PUB-2008-002; Cojocaru, C., Hadronic calibration of the ATLAS liquid argon end-cap calorimeter in the pseudorapidity region in beam tests (2004) Nucl. Instrum. Methods, Sect. A, 531, pp. 481-514
  • Jet energy measurement with the ATLAS detector in proton–proton collisions at √s=7 TeV (2013) Eur. Phys. J. C, 73, p. 2304. , arXiv:1112.6426 [hep-ex]
  • Cacciari, M., Salam, G.P., Soyez, G., The anti-k t jet clustering algorithm (2008) J. High Energy Phys., 4. , arXiv:0802.1189 [hep-ph]
  • Performance of b-jet identification in the ATLAS experiment (2015), arXiv:1512.01094 [hep-ex]; Dokshitzer, Y.L., Better jet clustering algorithms (1997) J. High Energy Phys., 8. , arXiv:hep-ph/9707323
  • Wobisch, M., Wengler, T., Hadronization corrections to jet cross sections in deep-inelastic scattering (1999), http://arxiv.org/abs/hep-ph/9907280, PITHA 99/16; Butterworth, J.M., Jet substructure as a new Higgs search channel at the LHC (2008) Phys. Rev. Lett., 100. , arXiv:0802.2470 [hep-ph]
  • Cacciari, M., Salam, G.P., Soyez, G., The catchment area of jets (2008) J. High Energy Phys., 4. , arXiv:0802.1188 [hep-ph]
  • Performance of missing transverse momentum reconstruction in proton–proton collisions at 7 TeV with ATLAS (2012) Eur. Phys. J. C, 72, p. 1844. , arXiv:1108.5602 [hep-ex]
  • Cowan, G., Asymptotic formulae for likelihood-based tests of new physics (2011) Eur. Phys. J. C, 71, p. 1554. , arXiv:1007.1727 [physics.data-an]
  • Cowan, G., (2013) Eur. Phys. J. C, 73, p. 2501. , (Erratum)
  • Read, A.L., Presentation of search results: the CL s technique (2002) J. Phys. G, 28, pp. 2693-2704

Citas:

---------- APA ----------
(2016) . Combination of searches for WW, WZ, and ZZ resonances in pp collisions at √s=8 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 755, 285-305.
http://dx.doi.org/10.1016/j.physletb.2016.02.015
---------- CHICAGO ----------
Aad, G. "Combination of searches for WW, WZ, and ZZ resonances in pp collisions at √s=8 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 755 (2016) : 285-305.
http://dx.doi.org/10.1016/j.physletb.2016.02.015
---------- MLA ----------
Aad, G. "Combination of searches for WW, WZ, and ZZ resonances in pp collisions at √s=8 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 755, 2016, pp. 285-305.
http://dx.doi.org/10.1016/j.physletb.2016.02.015
---------- VANCOUVER ----------
Aad, G. Combination of searches for WW, WZ, and ZZ resonances in pp collisions at √s=8 TeV with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2016;755:285-305.
http://dx.doi.org/10.1016/j.physletb.2016.02.015