Published June 2011
| Submitted + Published
Journal Article
Open
Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at √s = 7 TeV
Abstract
A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions at √s=7 TeV. Such events are expected in many new physics models, in particular a supersymmetric theory that is broken via a gauge-mediated mechanism, when the lightest charged and neutral gauginos are mass degenerate. The data sample used in this search corresponds to an integrated luminosity of 35 pb^(-1) collected with the CMS detector at the LHC. No evidence of such an excess above the standard model backgrounds, dominated by W production, is found. The results are presented as 95% confidence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.
Additional Information
© 2011 CERN, for the benefit of the CMS collaboration. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. Received: May 8, 2011. Accepted: June 3, 2011. Published: June 21, 2011. We thank David Shih and Joshua Ruderman for stimulating discussions, support, and help with the production of the SUSY Monte Carlo samples. We wish to congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative sta at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); Academy of Sciences and NICPB (Estonia); Academy of Finland, ME, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); PAEC (Pakistan); SCSR (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MST and MAE (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA).Attached Files
Published - Chatrchyan2011p15900J_High_Energy_Phys.pdf
Submitted - 1105.3152.pdf
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Additional details
- Eprint ID
- 25444
- Resolver ID
- CaltechAUTHORS:20110927-102057509
- FMSR (Austria)
- Fonds National de la Recherche Scientifique (FNRS)
- Fonds Wetenschappelijk Onderzoek (FWO)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Ministry of Education and Science (Bulgaria)
- CERN
- Chinese Academy of Sciences
- Ministry of Science and Technology (China)
- National Natural Science Foundation of China
- Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS)
- Ministry of Science, Education and Sport (Croatia)
- Research Promotion Foundation (Cyprus)
- Academy of Sciences (Estonia)
- National Institute of Chemical Physics and Biophysics (NICPB)
- Academy of Finland
- Ministry of Education and Culture (Finland)
- Helsinki Institute of Physics (HIP)
- Commissariat a l'Energie Atomique (CEA)
- Centre National de la Recherche Scientifique (CNRS)
- Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
- Bundesministerium für Bildung und Forschung (BMBF)
- Deutsche Forschungsgemeinschaft (DFG)
- Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF)
- General Secretariat for Research and Technology (GSRT)
- Hungarian Scientific Research Fund (OTKA)
- National Research, Development and Innovation Office (Hungary)
- Department of Atomic Energy (India)
- Department of Science and Technology (India)
- Institute for Research in Fundamental Sciences (Iran)
- Science Foundation, Ireland
- Istituto Nazionale di Fisica Nucleare (INFN)
- National Research Foundation of Korea
- World Class University (WCU)
- Lithuanian Academy of Sciences
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
- Consejo Nacional de Ciencia y Tecnología (CONACYT)
- Secretaría de Educación Pública (SEP)
- Universidad Autónoma de San Luis Potosí Inicio-Facultad de Ingeniería (UASLP-FAI)
- Atomic Energy Commission (Pakistan)
- SCSR (Poland)
- Fundação para a Ciência e Tecnologia (FCT)
- Joint Institute for Nuclear Research (JINR)
- MST (Russia)
- MAE (Russia)
- Ministry of Education, Science and Technological Development (Serbia)
- Ministerio de Ciencia e Innovación (MCINN)
- Centro Nacional de Física de Partículas, Astropartículas y Nuclear (CPAN)
- Swiss Funding Agencies
- National Science Council (Taipei)
- Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)
- Türkiye Atom Enerjisi Kurumu (TAEK)
- Science and Technology Facilities Council (STFC)
- Department of Energy (DOE)
- NSF
- Created
-
2011-09-27Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- CMS@Caltech