Published October 2013 | Version Published + Submitted
Journal Article Open

Measurement of the production cross section for Zγ → ννγ in pp collisions at √s = 7 TeV and limits on ZZγ and Zγγ triple gauge boson couplings

Abstract

A measurement of the Zγ→ννγ cross section in pp collisions at s√=7 TeV is presented, using data corresponding to an integrated luminosity of 5.0 fb^(−1) collected with the CMS detector. This measurement is based on the observation of events with an imbalance of transverse energy in excess of 130 GeV and a single photon in the absolute pseudorapidity range |η| < 1.4 with transverse energy above 145 GeV. The Zγ→ννγ production cross section is measured to be 21.1 ± 4.2 (stat.) ± 4.3 (syst.) ± 0.5 (lum.) fb, which agrees with the standard model prediction of 21.9 ± 1.1 fb. The results are combined with the CMS measurement of Zγ production in the ℓ^+ ℓ^− γ final state (where ℓ is an electron or a muon) to yield the most stringent limits to date on triple gauge boson couplings: ∣h^Z_3∣<2.7×10^(−3) , ∣h^Z_4∣<1.3×10^(−5) for ZZγ and ∣h^γ_3∣<2.9×10^(−3) , ∣h^γ_4∣<1.5×10^(−5) for Zγγ couplings.

Additional Information

© 2013 CERN for the benefit of the CMS collaboration. Published for SISSA by Springer. Received: September 4, 2013. Accepted: September 30, 2013. Published: October 24, 2013. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centres and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: the Austrian Federal Ministry of Science and Research and the Austrian Science Fund; the Belgian Fonds de la Recherche Scientifique, and Fonds voor Wetenschappelijk Onderzoek; the Brazilian Funding Agencies (CNPq, CAPES, FAPERJ, and FAPESP); the Bulgarian Ministry of Education and Science; CERN; the Chinese Academy of Sciences, Ministry of Science and Technology, and National Natural Science Foundation of China; the Colombian Funding Agency (COLCIENCIAS); the Croatian Ministry of Science, Education and Sport; the Research Promotion Foundation, Cyprus; the Ministry of Education and Research, Recurrent financing contract SF0690030s09 and European Regional Development Fund, Estonia; the Academy of Finland, Finnish Ministry of Education and Culture, and Helsinki Institute of Physics; the Institut National de Physique Nucléaire et de Physique des Particules / CNRS, and Commissariat à l'Énergie Atomique et aux Énergies Alternatives / CEA, France; the Bundesministerium für Bildung und Forschung, Deutsche Forschungsgemeinschaft, and Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany; the General Secretariat for Research and Technology, Greece; the National Scientific Research Foundation, and National Office for Research and Technology, Hungary; the Department of Atomic Energy and the Department of Science and Technology, India; the Institute for Studies in Theoretical Physics and Mathematics, Iran; the Science Foundation, Ireland; the Istituto Nazionale di Fisica Nucleare, Italy; the Korean Ministry of Education, Science and Technology and the World Class University program of NRF, Republic of Korea; the Lithuanian Academy of Sciences; the Mexican Funding Agencies (CINVESTAV, CONACYT, SEP, and UASLP-FAI); the Ministry of Business, Innovation and Employment, New Zealand; the Pakistan Atomic Energy Commission; the Ministry of Science and Higher Education and the National Science Centre, Poland; the Fundação para a Ciência e a Tecnologia, Portugal; JINR, Dubna; the Ministry of Education and Science of the Russian Federation, the Federal Agency of Atomic Energy of the Russian Federation, Russian Academy of Sciences, and the Russian Foundation for Basic Research; the Ministry of Education, Science and Technological Development of Serbia; the Secretaría de Estado de Investigaciόn, Desarrollo e Innovaciόn and Programa Consolider-Ingenio 2010, Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the National Science Council, Taipei; the Thailand Center of Excellence in Physics, the Institute for the Promotion of Teaching Science and Technology of Thailand, Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand; the Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authority; the Science and Technology Facilities Council, U.K.; the US Department of Energy, and the US National Science Foundation. Individuals have received support from the Marie-Curie programme and the European Research Council and EPLANET (European Union); the Leventis Foundation; the A. P. Sloan Foundation; the Alexander von Humboldt Foundation; the Belgian Federal Science Policy Office; the Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium); the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research, India; the Compagnia di San Paolo (Torino); the HOMING PLUS programme of Foundation for Polish Science, cofinanced by EU, Regional Development Fund; and the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF.

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Submitted - 1309.1117v2.pdf

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Additional details

Identifiers

Eprint ID
42856
Resolver ID
CaltechAUTHORS:20131205-102404535

Related works

Funding

Austrian Federal Ministry of Science and Research
Austrian Science Fund
Belgian Federal Science Policy Office
Fonds voor Wetenschappelijk Onderzoek
CNPq (Brazil)
CAPES (Brazil)
FAPERJ (Brazil)
FAPESP (Brazil)
Bulgarian Ministry of Education and Science
CERN
Chinese Academy of Sciences
Ministry of Science and Technology
National Natural Science Foundation of China
COLCIENCIAS (Colombia)
Croatian Ministry of Science, Education and Sport
Research Promotion Foundation, Cyprus
Ministry of Education and Research
SF0690030s09
European Regional Development Fund, Estonia
Academy of Finland
Finish Ministry of Education and Culture and Helsinki Institute of Physics
Institut National de Physique Nucléaire et de Physique des Particules/CNRS
Commissariat à l'Énergie Atomique et aux Énergies Alternatives (CEA) France
Bundesministerium für Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany)
Helmholtz-Gemeinschaft Deutscher Forschungszentren (Germany)
General Secretariat for Research and Technology (Greece)
National Scientific Research Foundation, and National Office for Research and Technology (Hungary)
Department of Atomic Energy and Department of Science and Technology of India
Institute for Studies in Theoretical Physics and Mathematics, Iran
Science Foundation, Ireland
Istituto Nazionale di Fisica Nucleare (Italy)
Korean Ministry of Education, Science and Technology and the World Class University Program of NRF (KOREA)
Lithuanian Academy of Sciences
CINVESTAV (Mexico)
CONACYT (Mexico)
SEP (Mexico)
UASLP-FAI (Mexico)
Ministry of Business, Innovation and Employment, New Zealand
Pakistan Atomic Energy Commission
Ministry of Science and Higher Education and the National Science Centre, Poland
Fundação para a Ciência e a Tecnologia, Portugal
JINR
Dubna
Ministry of Education and Science of the Russian Federation
Federal Agency of Atomic Energy of the Russian Federation
Russian Academy of Sciences
Russian Foundation for Basic Research
Ministry of Education, Science and Technological Development of Serbia
Secretaría de Estado de Investigaciόn, Desarrollo e Innovaciόn and Programa Consolider-Ingenio 2010, Spain
ETH Board
ETH Zurich
PSI
SNF
UniZH
Canton Zurich and SER
National Science Council (Taipei)
Thailand center of Excellence in Physics
Institute for the Promotion of Teaching Science and Technology of Thailand
Special Task Force for Activating Research and the National Science and Technology Development Agency of Thailand
Scientic and Technical Research Council of Turkey
Turkish Atomic Energy Authority
Science and Technology Facilities Council, U.K
Department of Energy (DOE)
NSF
Marie-Curie programme and the European Research Council and EPLANET (European Union)
Leventis Foundation
A.P. Sloan Foundation
Alexander von Humboldt Foundation
Belgian Federal Science Policy Office
Fonds pour la Formation à la Recherche dans l'índustrie et dans l'Ágriculture (FRIA-Belgium)
Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
Ministry of Education, Youth and Sports (MEYS) of Czech Republic
Council of Scientific and Industrial Research of India
Compagnia di San Paolo (Torino)
HOMING PLUS programme of Foundation for Polish Science
Regional Development Fund
Thalis and Aristeia programmes cofinanced by EU-ESF
Greek NSRF

Dates

Created
2013-12-05
Created from EPrint's datestamp field
Updated
2021-11-10
Created from EPrint's last_modified field

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Caltech groups
CMS@Caltech