ATLAS Collaboration (Including: Farrington, Sinead, Janus, M., Jeske, C., Jones, G. (Graham), Martin, T. A. and Pianori, E.). (2014) Search for new phenomena in photon + jet events collected in proton-proton collisions at √s = 8 TeV with the ATLAS detector. Physics Letters B, Volume 728 . pp. 562-578. doi:10.1016/j.physletb.2013.12.029 ISSN 0370-2693.

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Abstract

This Letter describes a model-independent search for the production of new resonances in photon + jet (γ+jet) events using 20 fb−1 of proton–proton LHC data recorded with the ATLAS detector at a centre-of-mass energy of s = 8 TeV. The γ+jet mass distribution is compared to a background model fit from data; no significant deviation from the background-only hypothesis is found. Limits are set at 95% credibility level on generic Gaussian-shaped signals and two benchmark phenomena beyond the Standard Model: non-thermal quantum black holes and excited quarks. Non-thermal quantum black holes are excluded below masses of 4.6 TeV and excited quarks are excluded below masses of 3.5 TeV.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH):	Proton-proton interactions, Standard model (Nuclear physics)
Journal or Publication Title:	Physics Letters B
Publisher:	Elsevier Science BV
ISSN:	0370-2693
Official Date:	January 2014
Dates:	Date Event January 2014 Published
Volume:	Volume 728
Page Range:	pp. 562-578
DOI:	10.1016/j.physletb.2013.12.029
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access (Creative Commons)
Date of first compliant deposit:	26 December 2015
Date of first compliant Open Access:	26 December 2015
Funder:	Obʺedinennyĭ institut i︠a︡dernykh issledovaniĭ (Dubna, Chekhovskiĭ raĭon, Russia), Agencia Nacional de Promoción Científica y Tecnológica (Argentina), Yerevan Physics Institute (Armenia), Australian Research Council (ARC), Austria. Bundesministerium für Wissenschaft und Forschung, Azärbaycan Milli Elmlär Akademiyası, Sosny Science and Technology Center (Belarus), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Natural Sciences and Engineering Research Council of Canada (NSERC), National Research Council Canada (NRCC), Canada Foundation for Innovation (CFI), European Organization for Nuclear Research (CERN), Chile. Comisión Nacional de Investigación Científica y Tecnológica (CONICYT), Zhongguo ke xue yuan [Chinese Academy of Sciences] (CAS), China. Guo jia ke xue ji shu bu [Ministry of Science and Technology], Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC), Fondo Colombiano de Investigaciones Científicas y Proyectos Especiales Francisco José de Caldas (COLCIENCIAS), Czech Socialist Republic (Czechoslovakia). Ministerstvo školství, mládeže a tělovýchovy, Czech Socialist Republic (Czechoslovakia). Ministerstvo průmyslu a obchodu, VSC CR (Czech Republic), Danmarks Grundforskningsfond [Danish National Research Foundation], Statens naturvidenskabelige forskningsråd (Denmark) [Natural Science Research Council], European Particle physics Latin American NETwork (EPLANET), European Research Council (ERC), Lundbeck Foundation, European Union (EU), Centre national de la recherche scientifique (France) (CNRS), Direction des Sciences de la Matière, Sakʻartʻvelos mecʻnierebatʻa erovnuli akademia [Georgian National Academy of Sciences] (GNAS), Germany. Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Max-Planck-Gesellschaft zur Förderung der Wissenschaften [Max Planck Society for the Advancement of Science], Alexander von Humboldt-Stiftung (AvHS), Greece. General Secretariat of Research and Technology, Israel Science Foundation (ISF), Minerva Stiftung, German-Israeli Foundation for Scientific Research and Development, Deutsch-Israelische Projektkooperation, Benoziyo Center (Israel), Istituto nazionale di fisica nucleare (INFN), Japan. Monbushō, Nihon Gakujutsu Shinkōkai [Japan Society for the Promotion of Science] (NGS), Centre national pour la recherche scientifique et technique (Morocco), Stichting voor Fundamenteel Onderzoek der Materie (FOM) [Foundation for Fundamental Research on Matter], Nederlandse Organisatie voor Wetenschappelijk Onderzoek [Netherlands Organisation for Scientific Research] (NWO), Norges forskningsråd [Norwegian Research Council], Poland. Ministerstwo Nauki i Szkolnictwa Wyższego [Ministry of Science and Higher Education] (MNiSW), Gabinete dos Relações Internationais da Ciência e Ensino Superior (Portugal), Fundação para a Ciência e a Tecnologia (FCT), Romania. Ministerul Educației, Cercetării și Tineretului [Ministry of Education, Research, Youth and Sports], Russia (Federation). Ministerstvo obrazovaniia i nauki [Ministry of Education and Science], Federalʹnoe agentstvo po atomnoĭ ėnergii (Russia), Serbia. Joint Institute for Nuclear Research (JINR), Serbia. Ministarstvo za nauku i tehnologiju i razvoj, Slovakia. Ministerstvo školstva, Slovenian Research Agency, Slovenia. Ministrstvo za visoko šolstvo, znanost in tehnologijo, South Africa. Dept. of Science and Technology, Spain. Ministerio de Ciencia e Innovación (MICINN), Sweden. Vetenskapsrådet [Research Council], Knut och Alice Wallenbergs Stiftelse (Sweden), Switzerland. Staatssekretariat für Ausbildung und Forschung (SER), Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF), Bern (Switzerland : Canton), Guo jia ke xue wei yuan hui [National Science Council (Taiwan)], Türkiye Atom Enerjisi Kurumu (TAEK), Science and Technology Facilities Council (Great Britain) (STFC), Royal Society (Great Britain), Leverhulme Trust (LT), United States. Dept. of Energy, National Science Foundation (U.S.) (NSF), Institut national de physique nucléaire et de physique des particules, France. Commissariat à l'énergie atomique (CEA), National Research Foundation (South Africa), Geneva (Switzerland : Canton)

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