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:

This Letter presents a search for new resonances with mass larger than 250 GeV, decaying to a Z boson and a photon. The dataset consists of an integrated luminosity of 3.2 fb −1 of pp collisions collected at s=13 TeV with the ATLAS detector at the Large Hadron Collider. The Z bosons are identified through their decays either to charged, light, lepton pairs (e + e − , μ + μ − ) or to hadrons. The data are found to be consistent with the expected background in the whole mass range investigated and upper limits are set on the production cross section times decay branching ratio to Zγ of a narrow scalar boson with mass between 250 GeV and 2.75 TeV. © 2016 The Author(s)

Registro:

Documento: Artículo
Título:Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector
Autor:Aaboud, M. et al.
Este artículo contiene 2864 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2864 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2017
Volumen:764
Página de inicio:11
Página de fin:30
DOI: http://dx.doi.org/10.1016/j.physletb.2016.11.005
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_v764_n_p11_Aaboud

Referencias:

  • 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]
  • Low, I., Lykken, J., Shaughnessy, G., Singlet scalars as Higgs imposters at the Large Hadron Collider (2011) Phys. Rev. D, 84. , arXiv:1105.4587 [hep-ph]
  • Search for high-mass diphoton resonances in ppcolli-sions at √s=8TeVwith the ATLAS detector (2015) Phys. Rev. D, 92. , arXiv:1504.05511 [hep-ex]
  • Search for diphoton resonances in the mass range from 150 to 850GeV in ppcollisions at √s=8TeV (2015) Phys. Lett. B, 750, pp. 494-519. , arXiv:1506.02301 [hep-ex]
  • Search for resonances in diphoton events at √s=13TeVwith the ATLAS detector (2016) J. High Energy Phys, 1609, p. 001. , arXiv:1606.03833 [hep-ex]
  • Search for High-Mass Diphoton Resonances in Proton-Proton Collisions at 13Tev and Combination with 8Tev Search, , arXiv:1609.02507 [hep-ex], 2016
  • Measurements of Wγand Zγproduction in ppcollisions at √s=7TeVwith the ATLAS detector at the LHC (2013) Phys. Rev. D, 87. , arXiv:1302.1283 [hep-ex]; Phys. Rev. D 91 (2015) 119901, Erratum
  • Search for new resonances in Wγand Zγfinal states in ppcollisions at √s=8TeVwith the ATLAS detector (2014) Phys. Lett. B, 738, pp. 428-447. , arXiv:1407.8150 [hep-ex]
  • Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at √s=8TeV (2014) J. High Energy Phys, 1408, p. 174. , arXiv:1405.3447 [hep-ex]
  • Combination of searches for WW, WZ, and ZZreso-nances in ppcollisions at √s=8TeVwith the ATLAS detector (2016) Phys. Lett. B, 755, pp. 285-305. , arXiv:1512.05099 [hep-ex]
  • Abazov, V.M., Search for a scalar or vector particle de-caying into Zγin p¯pcollisions at √s=1.96TeV (2009) Phys. Lett. B, 671, pp. 349-355. , D0 Collaboration, arXiv:0806.0611 [hep-ex]
  • The ATLAS Experiment at the CERN Large Hadron Collider (2008) J. Instrum, 3, p. 8003
  • (2010), http://cds.cern.ch/record/1451888, ATLAS Insertable B-Layer Technical Design Report, ATLAS-TDR-19, ATLAS Insertable B-Layer Technical Design Report Addendum, ATLAS-TDR-19-ADD-1, 2012; (2016) 2015 Start-Up Trigger Menu and Initial Performance As-Sessment of the ATLAS Trigger Using Run-2 Data, , http://cds.cern.ch/record/2136007, ATL-DAQ-PUB-2016-001
  • Measurement of the inclusive isolated prompt photon cross section in ppcollisions at √s=7TeVwith the ATLAS detector (2011) Phys. Rev. D, 83. , arXiv:1012.4389 [hep-ex]
  • The ATLAS simulation infrastructure (2010) Eur. Phys. J. C, 70, pp. 823-874. , arXiv:1005.4568 [physics.ins-det]
  • Agostinelli, S., GEANT4 Collaboration, GEANT4-a simulation toolkit (2003) Nucl. Instrum. Methods A, 506, p. 250
  • Sjostrand, T., Mrenna, S., Skands, P.Z., A brief introduction to PYTHIA 8.1 (2008) Comput. Phys. Commun, 178, p. 852. , arXiv:0710.3820 [hep-ph]
  • (2012) Summary of ATLAS Pythia 8 Tunes, , http://cds.cern.ch/record/1474107, ATL-PHYS-PUB-2012-003
  • Martin, A.D., Parton distributions for the LHC (2009) Eur. Phys. J. C, 63, pp. 189-285. , arXiv:0901.0002 [hep-ph]
  • Grazzini, M., Zγproduction at hadron colliders in NNLO QCD (2014) Phys. Lett. B, 731, pp. 204-207. , arXiv:1309.7000 [hep-ph]
  • Alioli, S., A general framework for implementing NLO calculations in shower Monte Carlo programs: The POWHEG BOX (2010) J. High Energy Phys, 1006, p. 043. , arXiv:1002.2581 [hep-ph]
  • Bagnaschi, E., Higgs production via gluon fusion in the POWHEG approach in the SM and in the MSSM (2012) J. High Energy Phys, 1202, p. 088. , arXiv:1111.2854 [hep-ph]
  • Lai, H.-L., New parton distributions for collider physics (2010) Phys. Rev. D, 82. , arXiv:1007.2241 [hep-ph]
  • Measurement of the Z/γ (2014) J. High Energy Phys, 1409, p. 145. , arXiv:1406.3660 [hep-ex]
  • Gleisberg, T., Event generation with SHERPA 1.1 (2009) J. High Energy Phys, 902, p. 7. , arXiv:0811.4622 [hep-ph]
  • Schumann, S., Krauss, F., A Parton shower algorithm based on Catani-Seymour dipole factorisation (2008) J. High Energy Phys, 803, p. 038. , arXiv:0709.1027 [hep-ph]
  • Hoche, S., QCD matrix elements and truncated showers (2009) J. High Energy Phys, 905, p. 053. , arXiv:0903.1219 [hep-ph]
  • Hoche, S., QCD matrix elements +parton showers: The NLO case (2013) J. High Energy Phys, 1304, p. 027. , arXiv:1207.5030 [hep-ph]
  • Gleisberg, T., Hoche, S., Comix, a new matrix element generator (2008) J. High Energy Phys, 812, p. 039. , arXiv:0808.3674 [hep-ph]
  • Cascioli, F., Maierhofer, P., Pozzorini, S., Scattering amplitudes with open loops (2012) Phys. Rev. Lett, 108. , arXiv:1111.5206 [hep-ph]
  • (2015) Identification of Boosted, Hadronically-Decaying Wand Zbosons in √s=13TeVMonte Carlo Simulations for ATLAS, ATL-PHYS-PUB-2015-033, , http://cds.cern.ch/record/2041461
  • Measurement of the Photon Identification Efficiencies with the ATLAS Detector Using LHC Run-1 Data, , arXiv:1606.01813 [hep-ex], 2016
  • (2014) Electron Efficiency Measurements with the ATLAS Detec-Tor Using the 2012 LHC Proton-Proton Collision Data, , http://cds.cern.ch/record/1706245, ATLAS-CONF-2014-032
  • Measurement of isolated-photon pair production in ppcollisions at √s=7TeVwith the ATLAS detector (2013) J. High Energy Phys, 1301, p. 086. , arXiv:1211.1913 [hep-ex]
  • (2016) Electron Efficiency Measurements with the ATLAS Detec-Tor Using the 2015 LHC Proton-Proton Collision Data, , http://cds.cern.ch/record/2157687, ATLAS-C0NF-2016-024
  • 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]
  • Topological cell clustering in the ATLAS calorimeters and its performance in LHC Run 1, submitted to Eur (2016) Phys. J. C, , arXiv:1603.02934 [hep-ex]
  • Cacciari, M., Salam, G.P., Soyez, G., The anti-ktjet clustering algorithm (2008) J. High Energy Phys, p. 063. , arXiv:0802.1189 [hep-ph]
  • Identification of boosted, hadronically decaying Wbosons and comparisons with ATLAS data taken at √s=8TeV (2016) Eur. Phys. J. C, 76, p. 154. , arXiv:1510.05821 [hep-ex]
  • Ellis, S.D., Soper, D.E., Successive combination jet algorithm for hadron collisions (1993) Phys. Rev. D, 48, pp. 3160-3166. , arXiv:hep-ph/9305266
  • Catani, S., Longitudinally invariant k±clustering algorithms for hadron hadron collisions (1993) Nucl. Phys. B, 406, pp. 187-224
  • Krohn, D., Thaler, J., Wang, L.-T., Jet Trimming, J., (2010) High Energy Phys, 1002, p. 084. , arXiv:0912.1342 [hep-ph]
  • Jet energy measurement with the ATLAS detector in proton-proton collisions at √s=7TeV (2013) Eur. Phys. J. C, 73, p. 2304. , arXiv:1112.6426 [hep-ex]
  • Larkoski, A.J., Moult, I., Neill, D., Power counting to better jet observables (2014) J. High Energy Phys, 1412, p. 009. , arXiv:1409.6298 [hep-ph]
  • Larkoski, A.J., Salam, G.P., Thaler, J., Energy correlation functions for jet substruc-ture (2013) J. High Energy Phys, 1306, p. 108. , arXiv:1305.0007 [hep-ph]
  • Olive, K.A., Review of particle physics (2014) Chin. Phys. C, 38
  • Observation of a new particle in the search for the Stan-dard Model Higgs boson with the ATLAS detector at the LHC (2012) Phys. Lett. B, 716, pp. 1-29. , arXiv:1207.7214 [hep-ex]
  • Oreglia, M., (1980) A Study of the Reactions ψ’→γγψ, , SLAC-R-236, PhD thesis, SLAC
  • Search for new phenomena in photon +jet events col-lected in proton-proton collisions at √s=8TeVwith the ATLAS detector (2014) Phys. Lett. B, 728, p. 562. , arXiv:1309.3230 [hep-ex]
  • Measurement of Higgs boson production in the diphoton decay channel in ppcollisions at center-of-mass energies of 7 and 8TeV with the ATLAS detector (2014) Phys. Rev. D, 90. , arXiv:1408.7084 [hep-ex]
  • (2010) The Simulation Principle and Performance of the AT-LAS Fast Calorimeter Simulation Fastcalosim, , http://cds.cern.ch/record/1300517, ATL-PHYS-PUB-2010-013
  • Improved luminosity determination in ppcollisions at √s=7TeVusing the ATLAS detector at the LHC (2013) Eur. Phys. J. C, 73, p. 2518. , arXiv:1302.4393 [hep-ex]
  • (2015) Performance of Jet Substructure Techniques in Early √s=13TeVppcollisions with the ATLAS Detector, , http://cds.cern.ch/record/2041462, ATLAS-C0NF-2015-035
  • 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] ; Eur. Phys. J. C 73 (2013) 2501, Erratum
  • Read, A.L., Presentation of search results: The CLs technique (2002) J. Phys. G, Nucl. Part. Phys, 28, p. 2693
  • (2016) ATLAS Computing Acknowledgements 2016-2017, , https://cds.cern.ch/record/2202407, ATL-GEN-PUB-2016-002

Citas:

---------- APA ----------
(2017) . Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 764, 11-30.
http://dx.doi.org/10.1016/j.physletb.2016.11.005
---------- CHICAGO ----------
Aaboud, M. "Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 764 (2017) : 11-30.
http://dx.doi.org/10.1016/j.physletb.2016.11.005
---------- MLA ----------
Aaboud, M. "Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector" . Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 764, 2017, pp. 11-30.
http://dx.doi.org/10.1016/j.physletb.2016.11.005
---------- VANCOUVER ----------
Aaboud, M. Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector. Phys Lett Sect B Nucl Elem Part High-Energy Phys. 2017;764:11-30.
http://dx.doi.org/10.1016/j.physletb.2016.11.005