Search for diphoton resonances in the mass range from 150 to 850 GeV in pp collisions at s=8TeV

CMS Collaboration

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Abstract

Results are presented of a search for heavy particles decaying into two photons. The analysis is based on a 19.7fb−1 sample of proton–proton collisions at s=8TeV collected with the CMS detector at the CERN LHC. The diphoton mass spectrum from 150 to 850GeV is used to search for an excess of events over the background. The search is extended to new resonances with natural widths of up to 10% of the mass value. No evidence for new particle production is observed and limits at 95% confidence level on the production cross section times branching fraction to diphotons are determined. These limits are interpreted in terms of two-Higgs-doublet model parameters.

Original languageEnglish
Pages (from-to)494-519
Number of pages26
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume750
DOIs
Publication statusPublished - 2015 Nov 12

Bibliographical note

Funding Information:
Individuals have received support from the Marie-Curie program 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 the Czech Republic; the Council of Science and Industrial Research, India; the HOMING PLUS program of the Foundation for Polish Science, cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF; and the National Priorities Research Program by Qatar National Research Fund.

Funding Information:
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 centers 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, Research and Economy 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 of the People's Republic of China , and National Natural Science Foundation of China ; the Colombian Funding Agency ( COLCIENCIAS ); the Croatian Ministry of Science, Education and Sports , and the Croatian Science Foundation ; the Research Promotion Foundation , Cyprus; the Ministry of Education and Research , Estonian Research Council via IUT23-4 and IUT23-6 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 Innovation Office , Hungary; the Department of Atomic Energy, Government of India 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 Ministry of Science, ICT and Future Planning , and National Research Foundation of Korea (NRF), Republic of Korea; the Lithuanian Academy of Sciences ; the Ministry of Education , and University of Malaya (Malaysia); 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 Investigación , Desarrollo e Innovación and Programa Consolider-Ingenio 2010 , Spain; the Swiss Funding Agencies ( ETH Board , ETH Zurich, PSI , SNF , UniZH , Canton Zurich , and SER ); the Ministry of Science and Technology , 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 National Academy of Sciences of Ukraine , and State Fund for Fundamental Researches , Ukraine; the Science and Technology Facilities Council , UK; the US Department of Energy , and the US National Science Foundation .

Funding Information:
Individuals have received support from the Marie-Curie program 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 the Czech Republic; the Council of Science and Industrial Research , India; the HOMING PLUS program of the Foundation for Polish Science , cofinanced from European Union, Regional Development Fund; the Compagnia di San Paolo (Torino); the Consorzio per la Fisica (Trieste); MIUR project 20108T4XTM (Italy); the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF ; and the National Priorities Research Program by Qatar National Research Fund .

Publisher Copyright:
© 2015 CERN for the benefit of the CMS Collaboration

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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