Journal article
Measurements of Zγ and Zγγ production in pp collisions at s =8 TeV with the ATLAS detector
Physical review. D, Particles, fields, gravitation, and cosmology, Vol.93(11), p.112002
2016
DOI: 10.1103/PhysRevD.93.112002
Abstract
The production of Z bosons with one or two isolated high-energy photons is studied using pp collisions at s=8 TeV. The analyses use a data sample with an integrated luminosity of 20.3 fb-1 collected by the ATLAS detector during the 2012 LHC data taking. The Zγ and Zγγ production cross sections are measured with leptonic (e+e-, μ+μ-, νν) decays of the Z boson, in extended fiducial regions defined in terms of the lepton and photon acceptance. They are then compared to cross-section predictions from the Standard Model, where the sources of the photons are radiation off initial-state quarks and radiative Z-boson decay to charged leptons, and from fragmentation of final-state quarks and gluons into photons. The yields of events with photon transverse energy ET>250 GeV from +-γ events and with ET>400 GeV from ννγ events are used to search for anomalous triple gauge-boson couplings ZZγ and Zγγ. The yields of events with diphoton invariant mass mγγ>200 GeV from +-γγ events and with mγγ>300 GeV from ννγγ events are used to search for anomalous quartic gauge-boson couplings ZZγγ and Zγγγ. No deviations from Standard Model predictions are observed and limits are placed on parameters used to describe anomalous triple and quartic gauge-boson couplings. © 2016 CERN, for the ATLAS Collaboration.
Details
- Title: Subtitle
- Measurements of Zγ and Zγγ production in pp collisions at s =8 TeV with the ATLAS detector
- Creators
- G Aad - Aix-Marseille UniversitéB Abbott - University of OklahomaJ Abdallah - University of IowaB Abeloos - Université Paris-SaclayR Aben - University of AmsterdamTorsten Åkesson - Particle PhysicsSimona Bocchetta - Particle PhysicsLENE Bryngemark - Particle PhysicsCaterina Doglioni - Particle PhysicsAnders Floderus - Particle PhysicsAnthony Hawkins - Particle PhysicsVincent Hedberg - Particle PhysicsJenny Ivarsson - Particle PhysicsGöran Jarlskog - Particle PhysicsElse Lytken - Particle PhysicsUlf Mjörnmark - Particle PhysicsOxana Smirnova - Particle PhysicsOleksandr Viazlo - Particle PhysicsATLAS Collaboration
- Contributors
- U Mallik (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physical review. D, Particles, fields, gravitation, and cosmology, Vol.93(11), p.112002
- DOI
- 10.1103/PhysRevD.93.112002
- ISSN
- 1550-2368
- eISSN
- 1550-2368
- Grant note
- DOI: 10.13039/501100003074, name: Agencia Nacional de Promoción Científica y Tecnológica; DOI: 10.13039/501100000923, name: Australian Research Council; DOI: 10.13039/501100003413, name: Bundesministerium für Wissenschaft, Forschung und Wirtschaft; DOI: 10.13039/501100002428, name: Austrian Science Fund; DOI: 10.13039/501100003593, name: Conselho Nacional de Desenvolvimento Científico e Tecnológico; DOI: 10.13039/501100001807, name: São Paulo Research Foundation; DOI: 10.13039/501100000038, name: Natural Sciences and Engineering Research Council of Canada; DOI: 10.13039/501100000046, name: National Research Council Canada; DOI: 10.13039/501100000196, name: Canada Foundation for Innovation; DOI: 10.13039/501100002848, name: Comisión Nacional de Investigación Científica y Tecnológica; DOI: 10.13039/501100002367, name: Chinese Academy of Sciences; DOI: 10.13039/501100002855, name: Chinese Ministry of Science and Technology; DOI: 10.13039/501100001809, name: National Natural Science Foundation of China; DOI: 10.13039/100007637, name: Departamento Administrativo de Ciencia, Tecnología e Innovación; DOI: 10.13039/501100001823, name: Ministry of Education Youth and Sports; DOI: 10.13039/501100004578, name: Ministry of Industry and Trade; DOI: 10.13039/501100001732, name: Danish National Research Foundation; DOI: 10.13039/100008394, name: Natur og Univers, Det Frie Forskningsråd; DOI: 10.13039/501100003554, name: Lundbeck Foundation; DOI: 10.13039/501100000781, name: European Research Council; DOI: 10.13039/501100004802, name: Georgian National Science Foundation; DOI: 10.13039/501100002347, name: Bundesministerium für Bildung und Forschung; DOI: 10.13039/501100001659, name: Deutsche Forschungsgemeinschaft; DOI: 10.13039/501100001656, name: Helmholtz Association; DOI: 10.13039/501100004189, name: Max-Planck-Gesellschaft; DOI: 10.13039/100005156, name: Alexander von Humboldt Foundation; DOI: 10.13039/501100003448, name: General Secretariat for Research and Technology; DOI: 10.13039/501100003977, name: Israel Science Foundation; DOI: 10.13039/501100001736, name: German-Israeli Foundation for Scientific Research and Development; DOI: 10.13039/501100005386, name: Israeli Centers for Research Excellence; DOI: 10.13039/501100004007, name: Istituto Nazionale di Fisica Nucleare; DOI: 10.13039/501100001700, name: Ministry of Education, Culture, Sports, Science, and Technology; DOI: 10.13039/501100001712, name: Foundation for Fundamental Research on Matter; DOI: 10.13039/501100003246, name: Netherlands Organisation for Scientific Research; DOI: 10.13039/100000882, name: BRF; DOI: 10.13039/501100005416, name: Research Council of Norway; DOI: 10.13039/501100004569, name: Ministry of Science and Higher Education; DOI: 10.13039/501100004281, name: Polish National Science Centre; DOI: 10.13039/501100003443, name: Ministry of Education and Science of the Russian Federation; DOI: 10.13039/501100003822, name: Joint Institute for Nuclear Research; DOI: 10.13039/501100004564, name: Ministry of Education, Science and Technological Development; DOI: 10.13039/501100003193, name: Ministry of Education, Science, Research and Sport; DOI: 10.13039/501100004329, name: Slovenian Research Agency; DOI: 10.13039/501100006588, name: Ministry of Education, Science and Sport; DOI: 10.13039/501100001342, name: Department of Science and Technology; DOI: 10.13039/501100003329, name: Ministry of Economy and Competitiveness; DOI: 10.13039/501100004359, name: Swedish Research Council; DOI: 10.13039/501100001711, name: Swiss National Science Foundation; DOI: 10.13039/501100001868, name: National Science Council; DOI: 10.13039/501100000271, name: Science and Technology Facilities Council; DOI: 10.13039/501100000288, name: Royal Society; DOI: 10.13039/501100000275, name: Leverhulme Trust; DOI: 10.13039/100000015, name: U.S. Department of Energy; DOI: 10.13039/100000001, name: National Science Foundation; DOI: 10.13039/501100004963, name: NSRF, National Strategic Reference Framework, European Union; DOI: 10.13039/501100004794, name: IN2P3-CNRS, Institut national de physique nucléaire et de physique des particules, Centre National de la Recherche Scientifique, France; DOI: 10.13039/501100002920, name: RGC, Research Grants Council, Hong Kong; DOI: 10.13039/501100001658, name: Minerva Foundation; DOI: 10.13039/501100001691, name: Japan Society for the Promotion of Science; DOI: 10.13039/501100006319, name: Centre National pour la Recherche Scientifique et Technique; DOI: 10.13039/501100006475, name: Bergens Forskningsstiftelse; DOI: 10.13039/501100001871, name: Fundação para a Ciência e a Tecnologia; DOI: 10.13039/501100004063, name: Knut och Alice Wallenbergs Stiftelse; name: Yerevan Physics Institute; name: Azerbaijan National Academy of Sciences; name: State Science and Technology Committee; name: European Organization for Nuclear Research; name: VSC CR; name: European Particle physics Latin American NETwork; name: Institut de recherche sur les lois fondamentales de l’Univers, Direction des Sciences de la Matière, Commissariat à l’Énergie Atomique; name: The Nella and Leon Benoziyo Center for High Energy Physics, Weizmann Institute of Science; name: Gabinete de Relações Internacionais da Ciência e do Ensino Superior; name: Ministry of National Education, Institute of Atomic Physics; name: State Atomic Energy Corporation; name: Secretariat for Education and Research; name: Cantons of Bern and Geneva; DOI: 10.13039/100010440, name: Turkish Atomic Energy Authority
- Language
- English
- Date published
- 2016
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984200026602771
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