Journal
PHYSICAL REVIEW LETTERS
Volume 108, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.041805
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Funding
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC, Canada
- NRC, Canada
- CFI, Canada
- CERN, Chile
- CONICYT, Chile
- CAS, China
- MOST, China
- NSFC, China
- COLCIENCIAS, Colombia
- MSMT CR, Czech Republic
- MPO CR, Czech Republic
- VSC CR, Czech Republic
- DNRF, Denmark
- DNSRC, Denmark
- Lundbeck Foundation, Denmark
- ARTEMIS
- European Union
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNAS, Georgia
- BMBF, Germany
- DFG, Germany
- HGF, Germany
- MPG, Germany
- AvH Foundation, Germany
- GSRT, Greece
- ISF, Israel
- MINERVA, Israel
- GIF, Israel
- DIP, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, The Netherlands
- NWO, The Netherlands
- RCN, Norway
- MNiSW, Poland
- GRICES, Portugal
- FCT, Portugal
- MERYS (MECTS), Romania
- MES of Russia and ROSATOM, Russian Federation
- JINR
- MSTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MVZT, Slovenia
- DST/NRF, South Africa
- MICINN, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SER, Switzerland
- SNSF, Switzerland
- Cantons of Bern and Geneva, Switzerland
- NSC, Taiwan
- TAEK, Turkey
- STFC, U.K.
- Royal Society, U.K.
- Leverhulme Trust, U.K
- DOE, U.S.
- NSF, U.S.
- Science and Technology Facilities Council [PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/H001093/1, ST/K001361/1, ST/K001337/1, ST/K001264/1 ATLAS, ST/I005803/1 GRIDPP, ST/K001248/1, ST/K001361/1 ATLAS, ST/I003525/1, ST/K001329/1 ATLAS, ST/I003142/1, ST/M001474/1, ST/I005803/1, ST/H001026/2, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/M001512/1, ST/M001431/1, PP/E003699/1, ST/G502320/1, ST/H001093/2, ST/J004944/1, ST/K001418/1, ATLAS, ST/J004928/1 ATLAS Upgrade, ST/K001361/1 LHCb, ST/J002798/1, ST/K001248/1 ATLAS, ST/J005576/1, ST/I000186/1, ST/K001337/1 ATLAS, ST/I006080/1, ST/J004928/1, PP/E003087/1, ST/I003517/1, ST/L001144/1, PP/E003699/2, GRIDPP, ST/K00073X/1, ST/F007337/1, ST/K001361/1 ATLAS Upgrades] Funding Source: researchfish
- STFC [ST/M001431/1, ST/J004928/1, ST/G502320/1, ST/I006080/1, ST/H001093/1, ST/H001026/1, ST/I003142/1, ST/M000753/1, ST/F007337/1, ST/J004944/1, PP/E003699/2, ST/J005576/1, ST/H001069/2, ST/K001361/1, ST/I003525/1, ST/I005803/1, PP/E003087/1, ST/I000186/1, ST/J002798/1, ST/K001329/1, ST/H001093/2, ST/K001248/1, ST/K00073X/1, ST/M001512/1, PP/E003699/1, ST/H001026/2, ST/K001337/1, PP/E000347/1, ST/I003517/1, ST/L001144/1] Funding Source: UKRI
- ICREA Funding Source: Custom
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A search for new phenomena in t (t) over bar events with large missing transverse momentum in proton-proton collisions at a center-of-mass energy of 7 TeV is presented. The measurement is based on 1: 04 fb(-1) of data collected with the ATLAS detector at the LHC. Contributions to this final state may arise from a number of standard model extensions. The results are interpreted in terms of a model where new top-quark partners are pair produced and each decay to an on-shell top (or antitop) quark and a long-lived undetected neutral particle. The data are found to be consistent with standard model expectations. A limit at 95% confidence level is set excluding a cross section times branching ratio of 1.1 pb for a top-partner mass of 420 GeVand a neutral particle mass less than 10 GeV. In a model of exotic fourth generation quarks, toppartner masses are excluded up to 420 GeV and neutral particle masses up to 140 GeV.
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