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:

A search for W ′ -boson production in the W ′ →tb¯→qq¯ ′ bb¯ decay channel is presented using 36.1fb −1 of 13 TeV proton–proton collision data collected by the ATLAS detector at the Large Hadron Collider in 2015 and 2016. The search is interpreted in terms of both a left-handed and a right-handed chiral W ′ boson within the mass range 1–5 TeV. Identification of the hadronically decaying top quark is performed using jet substructure tagging techniques based on a shower deconstruction algorithm. No significant deviation from the Standard Model prediction is observed and the results are expressed as upper limits on the W ′ →tb¯ production cross-section times branching ratio as a function of the W ′ -boson mass. These limits exclude W ′ bosons with right-handed couplings with masses below 3.0 TeV and W ′ bosons with left-handed couplings with masses below 2.9 TeV, at the 95% confidence level. © 2018 The Author

Registro:

Documento: Artículo
Título:Search for W′  →  tb decays in the hadronic final state using pp collisions at √s=13TeV with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2898 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2898 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2018
Volumen:781
Página de inicio:327
Página de fin:348
DOI: http://dx.doi.org/10.1016/j.physletb.2018.03.036
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_v781_n_p327_Aaboud

Referencias:

  • Dienes, K.R., Dudas, E., Gherghetta, T., Grand unification at intermediate mass scales through extra dimensions (1999) Nucl. Phys. B, 537, p. 47. , arXiv:hep-ph/9806292
  • Weinberg, S., Implications of dynamical symmetry breaking (1976) Phys. Rev. D, 13, p. 974. , Erratum
  • Susskind, L., Dynamics of spontaneous symmetry breaking in the Weinberg–Salam theory (1979) Phys. Rev. D, 20, p. 2619
  • Dimopoulos, S., Susskind, L., Mass without scalars (1979) Nucl. Phys. B, 155, p. 237
  • Eichten, E., Lane, K., Dynamical breaking of weak interaction symmetries (1980) Phys. Lett. B, 90, p. 125
  • Muller, D.J., Nandi, S., Topflavor: a separate SU(2) for the third family (1996) Phys. Lett. B, 383, p. 345. , arXiv:hep-ph/9602390
  • Arkani-Hamed, N., Cohen, A.G., Katz, E., Nelson, A.E., The littlest higgs (2002) J. High Energy Phys., 7. , arXiv:hep-ph/0206021
  • Chivukula, R.S., Dobrescu, B.A., Georgi, H., Hill, C.T., Top quark seesaw theory of electroweak symmetry breaking (1999) Phys. Rev. D, 59. , arXiv:hep-ph/9809470
  • Burdman, G., Dobrescu, B.A., Pontón, E., Resonances from two universal extra dimensions (2006) Phys. Rev. D, 74. , arXiv:hep-ph/0601186
  • Malkawi, E., Tait, T.M., Yuan, C.-P., A model of strong flavor dynamics for the top quark (1996) Phys. Lett. B, 385, p. 304. , arXiv:hep-ph/9603349
  • Pati, J.C., Salam, A., Lepton number as the fourth “color” (1974) Phys. Rev. D, 10, p. 275
  • Hill, C.T., Topcolor assisted technicolor (1995) Phys. Lett. B, 345, p. 483. , arXiv:hep-ph/9411426
  • Altarelli, B., Mele, G., Ruiz-Altaba, M., Searching for new heavy vector bosons in pp¯ colliders (1989) Z. Phys. C, 45, p. 109. , Erratum
  • Sullivan, Z., Fully differential W ′ production and decay at next-to-leading order in QCD (2002) Phys. Rev. D, 66. , arXiv:hep-ph/0207290
  • Duffty, D., Sullivan, Z., Model independent reach for W ′ bosons at the LHC (2012) Phys. Rev. D, 86. , arXiv:1208.4858 [hep-ph]
  • Search for the production of narrow tb‾ resonances in 1.9fb −1 of pp‾ collisions at s=1.96TeV (2009) Phys. Rev. Lett., 103. , arXiv:0902.3276 [hep-ex]
  • Search for W ′ →tb resonances with left- and right-handed couplings to fermions (2011) Phys. Lett. B, 699, p. 145. , arXiv:1101.0806 [hep-ex]
  • Search for heavy resonances decaying to a top quark and a bottom quark in the lepton+jets final state in proton–proton collisions at 13 TeV (2018) Phys. Lett. B, 777, p. 39. , arXiv:1708.08539 [hep-ex]
  • Search for W ′ →tb¯ in the lepton plus jets final state in proton–proton collisions at a centre-of-mass energy of s=8 TeV with the ATLAS detector (2015) Phys. Lett. B, 743, p. 235. , arXiv:1410.4103 [hep-ex]
  • Search for a W ′ boson decaying to a bottom quark and a top quark in pp collisions at s=7 TeV (2013) Phys. Lett. B, 718, p. 1229. , arXiv:1208.0956 [hep-ex]
  • Search for W ′ →tb decays in the lepton + jets final state in pp collisions at s=8 TeV (2014) J. High Energy Phys., 5. , arXiv:1402.2176 [hep-ex]
  • Search for W ′ →tb→qqbb decays in pp collisions at s=8TeV with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 165. , arXiv:1408.0886 [hep-ex]
  • Search for a new heavy gauge boson resonance decaying into a lepton and missing transverse momentum in 36 fb −1 of pp collisions at s=13 TeV with the ATLAS experiment (2017), arXiv:1706.04786 [hep-ex]; Search for heavy gauge W ′ boson in events with an energetic lepton and large missing transverse momentum at s=13TeV (2017) Phys. Lett. B, 770, p. 278. , arXiv:1612.09274 [hep-ex]
  • Identification of high transverse momentum top quarks in pp collisions at s=8TeV with the ATLAS detector (2016) J. High Energy Phys., 6. , arXiv:1603.03127 [hep-ex]
  • Soper, D.E., Spannowsky, M., Finding physics signals with shower deconstruction (2011) Phys. Rev. D, 84. , arXiv:1102.3480 [hep-ph]
  • Soper, D.E., Spannowsky, M., Finding top quarks with shower deconstruction (2013) Phys. Rev. D, 87. , arXiv:1211.3140 [hep-ph]
  • The ATLAS experiment at the CERN large hadron collider (2008) J. Instrum., 3
  • (2010), https://cds.cern.ch/record/1291633, https://cds.cern.ch/record/1451888 ATLAS insertable B-layer technical design report, 2010 ATLAS-TDR-19 ATLAS insertable B-layer technical design report addendum, ATLAS-TDR-19-ADD-1; Performance of the ATLAS trigger system in 2015 (2017) Eur. Phys. J. C, 77, p. 317. , arXiv:1611.09661 [hep-ex]
  • Alwall, J., The automated computation of tree-level and next-to-leading order differential cross sections, and their matching toparton shower simulations (2014) J. High Energy Phys., 7. , arXiv:1405.0301 [hep-ph]
  • Sjöstrand, T., Mrenna, S., Skands, P., A brief introduction to PYTHIA 8.1 (2008) Comput. Phys. Commun., 178, p. 852. , arXiv:0710.3820 [hep-ph]
  • Ball, R.D., A first unbiased global NLO determination of parton distributions and their uncertainties (2010) Nucl. Phys. B, 838, p. 136. , arXiv:1002.4407 [hep-ph]
  • ATLAS Pythia 8 tunes to 7TeV data (2014), https://cds.cern.ch/record/1966419, ATL-PHYS-PUB-2014-021; Bahr, M., Herwig++ physics and manual (2008) Eur. Phys. J. C, 58, p. 639. , arXiv:0803.0883 [hep-ph]
  • Gleisberg, T., Event generation with SHERPA 1.1 (2009) J. High Energy Phys., 2. , arXiv:0811.4622 [hep-ph]
  • Alioli, S., Nason, P., Oleari, C., Re, E., 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]
  • Frixione, S., Nason, P., Ridolfi, G., A positive-weight next-to-leading-order Monte Carlo for heavy flavour hadroproduction (2007) J. High Energy Phys., 9. , arXiv:0707.3088 [hep-ph]
  • 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
  • Lai, H.-L., New parton distributions for collider physics (2010) Phys. Rev. D, 82. , arXiv:1007.2241 [hep-ph]
  • Cacciari, M., Czakon, M., Mangano, M., Mitov, A., Nason, P., Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation (2012) Phys. Lett. B, 710, p. 612. , arXiv:1111.5869 [hep-ph]
  • Beneke, M., Falgari, P., Klein, S., Schwinn, C., Hadronic top-quark pair production with NNLL threshold resummation (2012) Nucl. Phys. B, 855, p. 695. , arXiv:1109.1536 [hep-ph]
  • Bärnreuther, P., Czakon, M., Mitov, A., Percent-level-precision physics at the tevatron: next-to-next-to-leading order QCD corrections to qq¯→tt¯+X (2012) Phys. Rev. Lett., 109. , arXiv:1204.5201 [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., 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., 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., 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]
  • Sjöstrand, T., High-energy physics event generation with PYTHIA 6.1 (2001) Comput. Phys. Commun., 135, p. 238. , arXiv:hep-ph/0010017
  • Skands, P.Z., Tuning Monte Carlo generators: the Perugia tunes (2010) Phys. Rev. D, 82. , arXiv:1005.3457 [hep-ph]
  • Lange, D., The EvtGen particle decay simulation package (2001) Nucl. Instrum. Methods A, 462, p. 152
  • Agostinelli, S., GEANT4 – a simulation toolkit (2003) Nucl. Instrum. Methods A, 506, p. 250
  • The ATLAS simulation infrastructure (2010) Eur. Phys. J. C, 70, p. 823. , arXiv:1005.4568 [physics.ins-det]
  • 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]
  • Cacciari, M., Salam, G.P., Soyez, G., FastJet user manual (2012) Eur. Phys. J. C, 72, p. 1896. , arXiv:1111.6097 [hep-ph]
  • Jet calibration and systematic uncertainties for jets reconstructed in the ATLAS detector at s=13TeV (2015), https://cds.cern.ch/record/2037613, ATL-PHYS-PUB-2015-015; Identification and rejection of pile-up jets at high pseudorapidity with the ATLAS detector (2017) Eur. Phys. J. C, 77, p. 580. , arXiv:1705.02211 [hep-ex]
  • Krohn, D., Thaler, J., Wang, L.-T., Jet trimming (2010) J. High Energy Phys., 2. , arXiv:0912.1342 [hep-ph]
  • Catani, S., Dokshitzer, Y., Seymour, M., Webber, B., Longitudinally-invariant k t -clustering algorithms for hadron–hadron collisions (1993) Nucl. Phys. B, 406, p. 187
  • Ellis, S., Soper, D., Successive combination jet algorithm for hadron collisions (1993) Phys. Rev. D, 48, p. 3160. , arXiv:hep-ph/9305266
  • Jet mass reconstruction with the ATLAS detector in early Run 2 data (2016), https://cds.cern.ch/record/2200211, ATLAS-CONF-2016-035; Performance of pile-up mitigation techniques for jets in pp collisions at s=8TeV using the ATLAS detector (2016) Eur. Phys. J. C, 76, p. 581. , arXiv:1510.03823 [hep-ex]
  • Performance of b-jet identification in the ATLAS experiment (2016) J. Instrum., 11. , arXiv:1512.01094 [hep-ex]
  • Optimisation of the ATLAS b-tagging performance for the 2016 LHC Run (2016), https://cds.cern.ch/record/2160731, ATL-PHYS-PUB-2016-012; Expected performance of the ATLAS b-tagging algorithms in Run-2 (2015), https://cds.cern.ch/record/2037697, ATL-PHYS-PUB-2015-022; Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data (2017) Eur. Phys. J. C, 77, p. 195. , arXiv:1612.01456 [hep-ex]
  • Muon reconstruction performance of the ATLAS detector in proton–proton collision data at s=13TeV (2016) Eur. Phys. J. C, 76, p. 292. , arXiv:1603.05598 [hep-ex]
  • Measurements of top-quark pair differential cross-sections in the lepton+jets channel in pp collisions at s=13TeV using the ATLAS detector (2017) J. High Energy Phys., 11. , arXiv:1708.00727 [hep-ex]
  • Cacciari, M., Salam, G.P., Soyez, G., The catchment area of jets (2008) J. High Energy Phys., 4. , arXiv:0802.1188 [hep-ph]
  • Butterworth, J.M., Davison, A.R., Rubin, M., Salam, G.P., Jet substructure as a new higgs- search channel at the large hadron collider (2008) Phys. Rev. Lett., 100
  • Boosted object tagging with variable-R jets in the ATLAS detector (2016), https://cds.cern.ch/record/2199360, ATL-PHYS-PUB-2016-013; Jet energy scale measurements and their systematic uncertainties in proton–proton collisions at s=13 TeV with the ATLAS detector (2017) Phys. Rev. D, 96. , arXiv:1703.09665 [hep-ex]
  • Jet global sequential corrections with the ATLAS detector in proton–proton collisions at s=8TeV (2015), https://cds.cern.ch/record/2001682, ATLAS-CONF-2015-002; Luminosity determination in pp collisions at s=8TeV using the ATLAS detector at the LHC (2016) Eur. Phys. J. C, 76, p. 653. , arXiv:1608.03953 [hep-ex]
  • Moneta, L., The RooStats project (2010) Proceedings of Science, , arXiv:1009.1003 [hep-ph]
  • Baak, M., HistFitter software framework for statistical data analysis (2015) Eur. Phys. J. C, 75, p. 153. , arXiv:1410.1280 [hep-ex]
  • Cowan, G., Cranmer, K., Gross, E., Vitells, O., Asymptotic formulae for likelihood-based tests of new physics (2011) Eur. Phys. J. C, 71, p. 1554. , arXiv:1007.1727 [physics.data-an] Erratum
  • Read, A.L., Presentation of search results: the CL s technique (2002) J. Phys. G, 28, p. 2693
  • https://cds.cern.ch/record/2202407, ATLAS computing acknowledgements 2016–2017, ATL-GEN-PUB-2016-002

Citas:

---------- APA ----------
(2018) . Search for W′  →  tb decays in the hadronic final state using pp collisions at √s=13TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 781, 327-348.
http://dx.doi.org/10.1016/j.physletb.2018.03.036
---------- CHICAGO ----------
Aaboud, M. "Search for W′  →  tb decays in the hadronic final state using pp collisions at √s=13TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 781 (2018) : 327-348.
http://dx.doi.org/10.1016/j.physletb.2018.03.036
---------- MLA ----------
Aaboud, M. "Search for W′  →  tb decays in the hadronic final state using pp collisions at √s=13TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 781, 2018, pp. 327-348.
http://dx.doi.org/10.1016/j.physletb.2018.03.036
---------- VANCOUVER ----------
Aaboud, M. Search for W′  →  tb decays in the hadronic final state using pp collisions at √s=13TeV with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2018;781:327-348.
http://dx.doi.org/10.1016/j.physletb.2018.03.036