Journal
PHYSICS LETTERS B
Volume 722, Issue 4-5, Pages 273-294Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2013.04.027
Keywords
CMS; LHC; SUSY; Exotica; GMSB; Long-lived; Photons; Displaced
Funding
- BMWF (Austria)
- FWF (Austria)
- FNRS (Belgium)
- FWO (Belgium)
- CNPq (Brazil)
- CAPES (Brazil)
- FAPERJ (Brazil)
- FAPESP (Brazil)
- MEYS (Bulgaria)
- CERN
- CAS (China)
- MoST (China)
- NSFC (China)
- COLCIENCIAS (Colombia)
- MSES (Croatia)
- RPF (Cyprus)
- MoER (Estonia) [SF0690030s09]
- ERDF (Estonia)
- Academy of Finland (Finland)
- MEC (Finland)
- HIP (Finland)
- CEA (France)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- GSRT (Greece)
- OTKA (Hungary)
- NKTH (Hungary)
- DAE (India)
- DST (India)
- IPM (Iran)
- SFI (Ireland)
- INFN (Italy)
- NRF (Republic of Korea)
- WCU (Republic of Korea)
- LAS (Lithuania)
- CINVESTAV (Mexico)
- CONACYT (Mexico)
- SEP (Mexico)
- UASLP-FAI (Mexico)
- MSI (New Zealand)
- PAEC (Pakistan)
- MSHE (Poland)
- NSC (Poland)
- FCT (Portugal)
- JINR (Armenia)
- JINR (Belarus)
- JINR (Georgia)
- JINR (Ukraine)
- JINR (Uzbekistan)
- MON (Russia)
- RosAtom (Russia)
- RAS (Russia)
- RFBR (Russia)
- MSTD (Serbia)
- SEIDI (Spain)
- CPAN (Spain)
- Swiss Funding Agencies (Switzerland)
- NSC (Taipei)
- ThEPCenter (Thailand)
- IPST (Thailand)
- NSTDA (Thailand)
- TUBITAK (Turkey)
- TAEK (Turkey)
- NASU (Ukraine)
- STFC (United Kingdom)
- DOE (USA)
- NSF (USA)
- Direct For Mathematical & Physical Scien
- Division Of Physics [1151640, 1205960, 0969555] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1211067] Funding Source: National Science Foundation
- Science and Technology Facilities Council [ST/I005912/1 GRIDPP, ST/I505580/1, ST/K001639/1, CMS, ST/F007434/1, ST/K001604/1 DMUK, ST/K001604/1 LHCb Upgrades, ST/K001604/1 GRIDPP, ST/K001604/1 MICE/UKNF, ST/H000925/1, ST/K003844/1 GRIDPP, ST/I005912/1, ST/I003622/1 GRIDPP, ST/L00609X/1 GRIDPP, ST/K001604/1 CMS Upgrade, ST/K001256/1, ST/K001604/1 SuperNEMO, ST/J005665/1, ST/K001604/1 LHCb, ST/L00609X/1, ST/I505572/1, ST/J004901/1, ST/K003844/1, ST/K001604/1 T2K, ST/K001604/1, ST/F007094/1] Funding Source: researchfish
- STFC [ST/I005912/1, ST/H000925/1, ST/K001639/1, ST/L00609X/1, ST/F007434/1, ST/I505572/1, ST/J004901/1, ST/F007094/1, ST/J005665/1, ST/I505580/1, ST/H00081X/2, ST/K001604/1, ST/K003844/1] Funding Source: UKRI
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Results are presented from a search for long-lived neutralinos decaying into a photon and an invisible particle, a signature associated with gauge-mediated supersymmetry breaking in supersymmetric models. The analysis is based on a 4.9 fb(-1) sample of proton-proton collisions at root s = 7 TeV, collected with the CMS detector at the LHC. The missing transverse energy and the time of arrival of the photon at the electromagnetic calorimeter are used to search for an excess of events over the expected background. No significant excess is observed, and lower limits at the 95% confidence level are obtained on the mass of the lightest neutralino, m > 220 GeV (for c tau < 500 mm), as well as on the proper decay length of the lightest neutralino, c tau > 6000 mm (for m < 150 GeV). (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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