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Abstract:

A search for resonant and nonresonant pair production of Higgs bosons in the bbτ+τ- final state is presented. The search uses 36.1 fb-1 of pp collision data with s=13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the τ-lepton pairs with at least one τ lepton decaying to final states with hadrons and a neutrino are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for nonresonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the standard model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs sector based on two doublets and a Randall-Sundrum bulk graviton model. Upper limits are placed on the resonant Higgs boson pair production cross-section times branching ratio, excluding resonances X in the mass range 305 GeV

Registro:

Documento: Artículo
Título:Search for Resonant and Nonresonant Higgs Boson Pair Production in the b b τ+τ- Decay Channel in pp Collisions at s =13 TeV with the ATLAS Detector
Autor:Aaboud, M. et al.
Este artículo contiene 2925 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2925 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Palabras clave:Dynamic mechanical analysis; Germanium compounds; Gravitation; Photons; Tellurium compounds; ATLAS detectors; ATLAS experiment; Confidence levels; Randall Sundrum gravitons; Randall-Sundrum; Supersymmetric models; Tau lepton pairs; The standard model; Bosons
Año:2018
Volumen:121
Número:19
DOI: http://dx.doi.org/10.1103/PhysRevLett.121.191801
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v121_n19_p_Aaboud

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, p. 1. , ATLAS Collaboration
  • Observation of a new boson with mass near 125 GeV in (Equation presented) collisions at (Equation presented) and 8 TeV J. High Energy Phys., 2013 (6), p. 081. , CMS Collaboration
  • Combined Measurement of the Higgs Boson Mass in (Equation presented) Collisions at (Equation presented) and 8 TeV with the ATLAS and CMS Experiments (2015) Phys. Rev. Lett., 114, p. 191803. , ATLAS and CMS Collaborations
  • Englert, F., Brout, R., Broken Symmetry and the Mass of Gauge Vector Mesons (1964) Phys. Rev. Lett., 13, p. 321
  • Higgs, P.W., Broken Symmetries and the Masses of Gauge Bosons (1964) Phys. Rev. Lett., 13, p. 508
  • Guralnik, G.S., Hagen, C.R., Kibble, T.W.B., Global Conservation Laws and Massless Particles (1964) Phys. Rev. Lett., 13, p. 585
  • Higgs, P.W., Spontaneous symmetry breakdown without massless bosons (1966) Phys. Rev., 145, p. 1156
  • Kibble, T.W.B., Symmetry breaking in non-Abelian gauge theories (1967) Phys. Rev., 155, p. 1554
  • Borowka, S., Greiner, N., Heinrich, G., Jones, S.P., Kerner, M., Schlenk, J., Schubert, U., Zirke, T., Higgs Boson Pair Production in Gluon Fusion at Next-to-Leading Order with Full Top-Quark Mass Dependence (2016) Phys. Rev. Lett., 117, p. 012001
  • Borowka, S., Greiner, N., Heinrich, G., Jones, S.P., Kerner, M., Schlenk, J., Schubert, U., Zirke, T., Erratum (2016) Phys. Rev. Lett., 117, p. 079901E
  • De Florian, D., (2016) Handbook of LHC Higgs Cross Sections: 4. Deciphering the Nature of the Higgs Sector, , https://cds.cern.ch/record/2227475/, CERN Report No. CERN-2017-002-M
  • Branco, G., Ferreira, P.M., Lavoura, L., Rebelo, M.N., Sher, M., Silva, J.P., Theory and phenomenology of two-Higgs-doublet models (2012) Phys. Rep., 516, p. 1
  • Randall, L., Sundrum, R., A Large Mass Hierarchy from a Small Extra Dimension (1999) Phys. Rev. Lett., 83, p. 3370
  • Agashe, K., Davoudiasl, H., Perez, G., Soni, A., Warped gravitons at the CERN LHC and beyond (2007) Phys. Rev. D, 76, p. 036006
  • Fitzpatrick, A.L., Kaplan, J., Randall, L., Wang, L.-T., Searching for the Kaluza-Klein graviton in bulk RS Models J. High Energy Phys., 2007 (9), p. 013
  • The ATLAS experiment at the CERN Large Hadron Collider (2008) J. Instrum., 3, p. S08003. , ATLAS Collaboration
  • (2010) ATLAS Insertable (Equation Presented)-layer Technical Design Report, , https://cds.cern.ch/record/1291633, ATLAS Collaboration, CERN Reports No. CERN-LHCC-2010-013 and No. ATLAS-TDR-19
  • Searches for Higgs boson pair production in the (Equation presented), (Equation presented),(Equation presented), (Equation presented) channels with the ATLAS detector (2015) Phys. Rev. D, 92, p. 092004. , ATLAS Collaboration
  • Search for Higgs Boson pair production in the (Equation presented) final state from (Equation presented) collision at (Equation presented) with the ATLAS detector (2015) Eur. Phys. J. C, 75, p. 412. , ATLAS Collaboration
  • Search for Higgs Boson Pair Production in the (Equation presented) Final State Using (Equation presented) Collision Data at (Equation presented) from the ATLAS Detector (2015) Phys. Rev. Lett., 114, p. 081802. , ATLAS Collaboration
  • Search for Pair Production of Higgs Bosons in the (Equation Presented) Final State Using Proton-proton Collisions at (Equation Presented) with the ATLAS Detector, , ATLAS Collaboration
  • Search for Higgs boson pair production in events with two bottom quarks and two tau leptons in proton-proton collisions at (Equation presented) (2018) Phys. Lett. B, 778, p. 101. , CMS Collaboration
  • Search for a massive resonance decaying to a pair of Higgs bosons in the four (Equation presented) quark final state in proton-proton collisions at (Equation presented) (2018) Phys. Lett. B, 781, p. 244. , CMS Collaboration
  • Alwall, J., Frederix, R., Frixione, S., Hirschi, V., Maltoni, F., Mattelaer, O., Shao, H.-S., Zaro, M., The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations J. High Energy Phys., 2014 (7), p. 079
  • Frederix, R., Frixione, S., Hirschi, V., Maltoni, F., Mattelaer, O., Torrielli, P., Vryonidou, E., Zaro, M., Higgs pair production at the LHC with NLO and parton-shower effects (2014) Phys. Lett. B, 732, p. 142
  • Dawson, S., Dittmaier, S., Spira, M., Neutral Higgs-boson pair production at hadron colliders: QCD corrections (1998) Phys. Rev. D, 58, p. 115012
  • Plehn, T., Spira, M., Zerwas, P.M., Pair production of neutral Higgs particles in gluon-gluon collisions (1996) Nucl. Phys., B479, p. 46
  • Plehn, T., Spira, M., Zerwas, P.M., Erratum (1998) Nucl. Phys., B531, p. 655E
  • Grober, R., Muhlleitner, M., Spira, M., Streicher, J., NLO QCD corrections to Higgs pair production including dimension-6 operators J. High Energy Phys., 2015 (9), p. 092
  • Lai, H.-L., Guzzi, M., Huston, J., Li, Z., Nadolsky, P.M., Pumplin, J., Yuan, C.P., New parton distributions for collider physics (2010) Phys. Rev. D, 82, p. 074024
  • Bahr, M., Herwig++ physics and manual (2008) Eur. Phys. J. C, 58, p. 639
  • Gieseke, S., Rohr, C., Siodmok, A., Colour reconnections in Herwig++ (2012) Eur. Phys. J. C, 72, p. 2225
  • Borowka, S., Greiner, N., Heinrich, G., Jones, S.P., Kerner, M., Schlenk, J., Zirke, T., Full top quark mass dependence in Higgs boson pair production at NLO J. High Energy Phys., 2016 (10), p. 107
  • Borowka, S., Greiner, N., Heinrich, G., Jones, S.P., Kerner, M., Schlenk, J., Schubert, U., Zirke, T., Higgs Boson Pair Production in Gluon Fusion at Next-to-Leading Order with Full Top-Quark Mass Dependence (2016) Phys. Rev. Lett., 117, p. 012001
  • Borowka, S., Greiner, N., Heinrich, G., Jones, S.P., Kerner, M., Schlenk, J., Schubert, U., Zirke, T., (2016) Phys. Rev. Lett., 117, p. 079901E
  • Sjöstrand, T., Mrenna, S., Skands, P., A brief introduction to Pythia 8.1 (2008) Comput. Phys. Commun., 178, p. 852
  • (2014) ATLAS Pythia 8 Tunes to 7 TeV Data, , https://cds.cern.ch/record/1966419, ATLAS Collaboration, CERN Report No. ATL-PHYS-PUB-2014-021
  • Ball, R.D., Parton distributions with LHC data (2013) Nucl. Phys., B867, p. 244
  • Oliveira, A., Gravity Particles from Warped Extra Dimensions, Predictions for LHC
  • Equivalently, (Equation presented) bosons produced in association with at least one light-flavor quark ((Equation presented), (Equation presented), or (Equation presented)) are referred to as (Equation presented); The notations (Equation presented) and (Equation presented) are used throughout this Letter, in place of (Equation presented) and (Equation presented), as charge conjugation is implied; Alioli, S., Nason, P., Oleari, C., Re, E., A general framework for implementing NLO calculations in shower Monte Carlo programs: The Powheg Box J. High Energy Phys., 2010 (6), p. 043
  • Artoisenet, P., Frederix, R., Mattelaer, O., Rietkerk, R., Automatic spin-entangled decays of heavy resonances in Monte Carlo simulations J. High Energy Phys., 2013 (3), p. 015
  • Sjöstrand, T., Mrenna, S., Skands, P., Pythia 6.4 physics and manual J. High Energy Phys., 2006 (5), p. 026
  • Skands, P.Z., Tuning Monte Carlo generators: The Perugia tunes (2010) Phys. Rev. D, 82, p. 074018
  • Czakon, M., Mangano, M.L., Mitov, A., Rojo, J., Constraints on the gluon PDF from top quark pair production at hadron colliders J. High Energy Phys., 2013 (7), p. 167
  • Aliev, M., Lacker, H., Langenfeld, U., Moch, S., Uwer, P., Wiedermann, M., HATHOR: HAdronic Top and Heavy quarks crOss section calculatoR (2011) Comput. Phys. Commun., 182, p. 1034
  • Kant, P., Kind, O.M., Kintscher, T., Lohse, T., Martini, T., Mölbitz, S., Rieck, P., Uwer, P., HatHor for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions (2015) Comput. Phys. Commun., 191, p. 74
  • Kidonakis, N., Two-loop soft anomalous dimensions for single top quark associated production with a (Equation presented) or (Equation presented) (2010) Phys. Rev. D, 82, p. 054018
  • Gleisberg, T., Höche, S., Krauss, F., Schönherr, M., Schumann, S., Siegert, F., Winter, J., Event generation with Sherpa 1.1 J. High Energy Phys., 2009 (2), p. 007
  • Gleisberg, T., Höche, S., Comix, a new matrix element generator J. High Energy Phys., 2008 (12), p. 039
  • Cascioli, F., Maierhofer, P., Pozzorini, S., Scattering Amplitudes with Open Loops (2012) Phys. Rev. Lett., 108, p. 111601
  • Schumann, S., Krauss, F., A parton shower algorithm based on Catani-Seymour dipole factorisation J. High Energy Phys., 2008 (3), p. 038
  • Höche, S., Krauss, F., Schönherr, M., Siegert, F., QCD matrix (Equation presented): The NLO case J. High Energy Phys., 2013 (4), p. 027
  • Ball, R.D., Parton distributions for the LHC Run II J. High Energy Phys., 2015 (4), p. 040
  • Anastasiou, C., Dixon, L.J., Melnikov, K., Petriello, F., High precision QCD at hadron colliders: Electroweak gauge boson rapidity distributions at NNLO (2004) Phys. Rev. D, 69, p. 094008
  • Ciccolini, M.L., Dittmaier, S., Krämer, M., Electroweak radiative corrections to associated WH and ZH production at hadron colliders (2003) Phys. Rev. D, 68, p. 073003
  • Brein, O., Djouadi, A., Harlander, R.V., NNLO QCD corrections to the Higgs-strahlung processes at hadron colliders (2004) Phys. Lett. B, 579, p. 149
  • Ferrera, G., Grazzini, M., Tramontano, F., Associated Higgs-(Equation presented)-Bosons Production at Hadron Colliders: A Fully Exclusive QCD Calculation at NNLO (2011) Phys. Rev. Lett., 107, p. 152003
  • Brein, O., Harlander, R.V., Wiesemann, M., Zirke, T., Top-quark mediated effects in hadronic Higgs-Strahlung (2012) Eur. Phys. J. C, 72, p. 1868
  • Ferrera, G., Grazzini, M., Tramontano, F., Higher-order QCD effects for associated WH production and decay at the LHC J. High Energy Phys., 2014 (4), p. 039
  • Ferrera, G., Grazzini, M., Tramontano, F., Associated ZH production at hadron colliders: The fully differential NNLO QCD calculation (2015) Phys. Lett. B, 740, p. 51
  • Campbell, J.M., Ellis, R.K., Williams, C., Associated production of a Higgs boson at NNLO J. High Energy Phys., 2016 (6), p. 179
  • Alioli, S., Nason, P., Oleari, C., Re, E., NLO Higgs boson production via gluon fusion matched with shower in Powheg J. High Energy Phys., 2009 (4), p. 002
  • Measurement of the (Equation presented) boson transverse momentum distribution in (Equation presented) collisions at (Equation presented) with the ATLAS detector J. High Energy Phys., 2014 (9), p. 145. , ATLAS Collaboration
  • Altenkamp, L., Dittmaier, S., Harlander, R.V., Rzehak, H., Zirke, T., Gluon-induced Higgs-strahlung at next-to-leading order QCD J. High Energy Phys., 2013 (2), p. 078
  • Hespel, B., Maltoni, F., Vryonidou, E., Higgs and Z boson associated production via gluon fusion in the SM and the 2HDM J. High Energy Phys., 2015 (6), p. 065
  • Harlander, R.V., Kulesza, A., Theeuwes, V., Zirke, T., Soft gluon resummation for gluon-induced Higgs Strahlung J. High Energy Phys., 2014 (11), p. 082
  • Harlander, R.V., Liebler, S., Zirke, T., Higgs Strahlung at the Large Hadron Collider in the 2-Higgs-doublet model J. High Energy Phys., 2014 (2), p. 023
  • Brein, O., Harlander, R.V., Zirke, T.J.E., Vh@nnlo-Higgs Strahlung at hadron colliders (2013) Comput. Phys. Commun., 184, p. 998
  • Lange, D.J., The EvtGen particle decay simulation package (2001) Nucl. Instrum. Methods Phys. Res., Sect. A, 462, p. 152
  • Agostinelli, S., Geant 4-a simulation toolkit (2003) Nucl. Instrum. Methods Phys. Res., Sect. A, 506, p. 250
  • The ATLAS simulation infrastructure (2010) Eur. Phys. J. C, 70, p. 823. , ATLAS Collaboration
  • ATLAS uses a right-handed coordinate system with its origin at the nominal interaction point (IP) in the center of the detector and the (Equation presented) axis along the beam pipe. The (Equation presented) axis points to the center of the LHC ring and the (Equation presented) axis points upward. Cylindrical coordinates (Equation presented) are used in the transverse plane, (Equation presented) is the azimuthal angle around the (Equation presented) axis. The pseudorapidity is defined in terms of the polar angle (Equation presented) as (Equation presented). The distance between two objects in (Equation presented) space is (Equation presented). Transverse momentum is defined by (Equation presented); Cacciari, M., Salam, G.P., Soyez, G., The anti-(Equation presented) jet clustering algorithm J. High Energy Phys., 2008 (4), p. 063
  • Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1 (2017) Eur. Phys. J. C, 77, p. 490. , ATLAS Collaboration
  • Jet energy scale measurements and their systematic uncertainties in proton-proton collisions at (Equation presented) with the ATLAS detector (2017) Phys. Rev. D, 96, p. 072002. , ATLAS Collaboration
  • (2014) Tagging and Suppression of Pileup Jets with the ATLAS Detector, , https://cds.cern.ch/record/1700870, ATLAS Collaboration, CERN Report No. ATLAS-CONF-2014-018
  • (2017) Measurement of the Tau Lepton Reconstruction and Identification Performance in the ATLAS Experiment Using (Equation Presented) Collisions at (Equation Presented), , https://cds.cern.ch/record/2261772, ATLAS Collaboration, CERN Report No. ATLAS-CONF-2017-029
  • (2015) Reconstruction, Energy Calibration, and Identification of Hadronically Decaying Tau Leptons in the ATLAS Experiment for Run-2 of the LHC, , https://cds.cern.ch/record/2064383, ATLAS Collaboration, CERN Report No. ATL-PHYS-PUB-2015-045
  • Identification and energy calibration of hadronically decaying tau leptons with the ATLAS experiment in (Equation presented) collisions at (Equation presented) (2015) Eur. Phys. J. C, 75, p. 303. , ATLAS Collaboration
  • Hoecker, A., TMVA: Toolkit for Multivariate Data Analysis Proc. Sci., 2007 (ACAT2007), p. 040. , https://pos.sissa.it/050/040/pdf
  • (2016) Electron Efficiency Measurements with the ATLAS Detector Using the 2015 LHC Proton-proton Collision Data, , https://cds.cern.ch/record/2157687, ATLAS Collaboration, CERN Report No. ATLAS-CONF-2016-024
  • Muon reconstruction performance of the ATLAS detector in proton-proton collision data at (Equation presented) (2016) Eur. Phys. J. C, 76, p. 292. , ATLAS Collaboration
  • Performance of pile-up mitigation techniques for jets in (Equation presented) collisions at (Equation presented) using the ATLAS detector (2016) Eur. Phys. J. C, 76, p. 581. , ATLAS Collaboration
  • Performance of Missing Transverse Momentum Reconstruction with the ATLAS Detector Using Proton-proton Collisions at (Equation Presented), , ATLAS Collaboration
  • Performance of b-Jet Identification in the ATLAS Experiment (2016) J. Instrum., 11, p. P04008. , ATLAS Collaboration
  • (2016) Optimisation of the ATLAS (Equation Presented)-tagging Performance for the 2016 LHC Run, , https://cds.cern.ch/record/2160731, ATLAS Collaboration, CERN Report No. ATL-PHYS-PUB-2016-012
  • Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in (Equation presented) of pp collisions at (Equation presented) with the ATLAS detector J. High Energy Phys., 2018 (1), p. 055. , ATLAS Collaboration
  • Elagin, A., Murat, P., Pranko, A., Safonov, A., A new mass reconstruction technique for resonances decaying to (Equation presented) (2011) Nucl. Instrum. Methods Phys. Res., Sect. A, 654, p. 481
  • Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector J. High Energy Phys., 2015 (4), p. 117. , ATLAS Collaboration
  • The fake-(Equation presented) contribution of the (Equation presented) background is estimated using the fake-factor method in the analysis, however, for the training of the BDTs the (Equation presented) background is taken from simulation; Luminosity determination in (Equation presented) collisions at (Equation presented) using the ATLAS detector at the LHC (2016) Eur. Phys. J. C, 76, p. 653. , ATLAS Collaboration
  • Measurement of the Inelastic Proton-Proton Cross Section at (Equation presented) with the ATLAS Detector at the LHC (2016) Phys. Rev. Lett., 117, p. 182002. , ATLAS Collaboration
  • (2015) Electron Identification Measurements in ATLAS Using (Equation Presented) Data with 50 Ns Bunch Spacing, , https://cds.cern.ch/record/2048202, ATLAS Collaboration, CERN Report No. ATLAS-PHYS-PUB-2015-041
  • (2015) Muon Reconstruction Performance in Early 13 TeV Data, , https://cds.cern.ch/record/2047831, ATLAS Collaboration, CERN Report No. ATLAS-PHYS-PUB-2015-037
  • (2015) Jet Calibration and Systematic Uncertainties for Jets Reconstructed in the ATLAS Detector at (Equation Presented), , https://cds.cern.ch/record/2037613, ATLAS Collaboration, CERN Report No. ATLAS-PHYS-PUB-2015-015
  • (2015) Expected Performance of the ATLAS (Equation Presented)-tagging Algorithms in Run-2, , https://cds.cern.ch/record/2037697, ATLAS Collaboration, CERN Report No. ATLAS-PHYS-PUB-2015-022
  • (2015) Commissioning of the ATLAS B-tagging Algorithms Using (Equation Presented) Events in Early Run-2 Data, , https://cds.cern.ch/record/2047871, ATLAS Collaboration, CERN Report No. ATLAS-PHYS-PUB-2015-039
  • Butterworth, J., PDF4LHC recommendations for LHC Run II (2016) J. Phys. G, 43, p. 023001
  • Evidence for the (Equation presented) decay with the ATLAS detector J. High Energy Phys., 2017 (12), p. 024. , ATLAS Collaboration
  • Evidence for the associated production of the Higgs boson and a top quark pair with the ATLAS detector (2018) Phys. Rev. D, 97, p. 072003. , ATLAS Collaboration
  • 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
  • Cowan, G., Cranmer, K., Gross, E., Vitells, O., Erratum (2013) Eur. Phys. J. C, 73, p. 2501E
  • Read, A.L., Presentation of search results: The CLs technique (2002) J. Phys. G, 28, p. 2693
  • Djouadi, A., Quevillon, J., The MSSM Higgs sector at a high (Equation presented): Reopening the low (Equation presented) regime and heavy Higgs searches J. High Energy Phys., 2013 (10), p. 028
  • Djouadi, A., Maiani, L., Moreau, G., Polosa, A., Quevillon, J., Riquer, V., The post-Higgs MSSM scenario: Habemus MSSM? (2013) Eur. Phys. J. C, 73, p. 2650
  • ATLAS Computing Acknowledgements, , https://cds.cern.ch/record/2202407, ATLAS Collaboration, CERN Report No. ATL-GEN-PUB-2016-002

Citas:

---------- APA ----------
(2018) . Search for Resonant and Nonresonant Higgs Boson Pair Production in the b b τ+τ- Decay Channel in pp Collisions at s =13 TeV with the ATLAS Detector. Physical Review Letters, 121(19).
http://dx.doi.org/10.1103/PhysRevLett.121.191801
---------- CHICAGO ----------
Aaboud, M. "Search for Resonant and Nonresonant Higgs Boson Pair Production in the b b τ+τ- Decay Channel in pp Collisions at s =13 TeV with the ATLAS Detector" . Physical Review Letters 121, no. 19 (2018).
http://dx.doi.org/10.1103/PhysRevLett.121.191801
---------- MLA ----------
Aaboud, M. "Search for Resonant and Nonresonant Higgs Boson Pair Production in the b b τ+τ- Decay Channel in pp Collisions at s =13 TeV with the ATLAS Detector" . Physical Review Letters, vol. 121, no. 19, 2018.
http://dx.doi.org/10.1103/PhysRevLett.121.191801
---------- VANCOUVER ----------
Aaboud, M. Search for Resonant and Nonresonant Higgs Boson Pair Production in the b b τ+τ- Decay Channel in pp Collisions at s =13 TeV with the ATLAS Detector. Phys Rev Lett. 2018;121(19).
http://dx.doi.org/10.1103/PhysRevLett.121.191801