Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP06(2012)088
Keywords
Hadron-Hadron Scattering
Categories
Funding
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq, Brazil
- FAPESP, Brazil
- NSERC, Canada
- NRC, Canada
- CFI, Canada
- CERN
- 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
- EPLANET
- ERC
- European Union
- IN2P3-CNRS, Frame
- CLA-DSM/IRFU, Frame
- GNAS, Georgia
- BMBF, Germany
- DFG, Germany
- HGF, Germany
- MPG, Germany
- AvH Foundation, Germany
- GSRT, Greece
- ISF, Israel
- MINERVA, Israel
- CIF, Israel
- DIP, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- RCN, Norway
- MNiSW, Poland
- GRICES, Portugal
- FCT, Portugal
- MERYS (MECTS), Romania
- MES of Russia
- 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
- Canton of Bern, Switzerland
- Canton of Geneva, Switzerland
- NSC, Taiwan
- TALK, Turkey
- STFC, United Kingdom
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- DOE, United States of America
- NSF, United States of America
- STFC [ST/J004928/1, ST/G502320/1, ST/I006080/1, ST/L001195/1, ST/K501840/1, ST/H001026/1, ST/I003142/1, ST/M000753/1, PP/E002757/1, ST/K000705/1, ST/K001361/1, ST/F007337/1, ST/H001042/2, ST/J004944/1, PP/E003699/2, ST/M000761/1, ST/J005576/1, ST/I003525/1, ST/I005803/1, ST/H001069/2, ST/J005460/1, ST/H00100X/1, ST/I005811/1, ST/H001042/1, PP/E000355/1, PP/E003087/1, ST/I000186/1, ST/J002798/1, ST/M001431/1, ST/K001248/1, ST/K00073X/1, ST/M001512/1, PP/E003699/1, ST/H001026/2, ST/K001337/1, ST/H00100X/2, ST/I003517/1, ST/L001144/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/I005803/1, ST/H001026/2, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/H001026/1, ST/M001512/1, ST/M001431/1, PP/E003699/1, ST/G502320/1, ST/K501840/1 GRIDPP, ST/H001093/2, ST/J004944/1, ST/K001418/1, ATLAS, ST/K00140X/1, ST/K001310/1 LHCb, ST/J004928/1 ATLAS Upgrade, ST/I005811/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/H001042/1, ST/H001042/2, ST/H001093/1, ST/K001361/1, ST/K501840/1, ST/K001337/1, ST/K001264/1 ATLAS, ST/I005803/1 GRIDPP, ST/M000761/1, ST/K001248/1, ST/K001361/1 ATLAS, ST/K00140X/1 ATLAS, ST/L001195/1, ST/I003525/1, PP/E002757/1, ST/K001396/1 ATLAS, ST/K001329/1 ATLAS, ST/I003142/1, ST/K000705/1, ST/J005576/1, ST/K001310/1 LHCb Upgrades, ST/I000186/1, ST/K001337/1 ATLAS, ST/I006080/1, ST/J004928/1, PP/E003087/1, ST/I003517/1, ST/H00100X/2, ST/L001144/1, ST/K001310/1, PP/E003699/2, GRIDPP, ST/J005460/1, ST/K00073X/1, ST/K001310/1 ATLAS Upgrades, ST/F007337/1, ST/K00140X/1 LHCb, ST/K001361/1 ATLAS Upgrades, PP/E000355/1, ST/K001248/1 ATLAS, ST/J002798/1, ST/H00100X/1, ST/K001361/1 LHCb, ST/M001474/1] Funding Source: researchfish
- Division Of Physics
- Direct For Mathematical & Physical Scien [1119200] Funding Source: National Science Foundation
- ICREA Funding Source: Custom
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This paper presents measurements of the polarization of W bosons in top quark decays, derived from t (t) over bar events with missing transverse momentum, one charged lepton and at least four jets, or two charged leptons and at least two jets. Data from pp collisions at a centre-of-mass energy of 7 TeV were collected with the ATLAS experiment at the LHC and correspond to an integrated luminosity of 1.04 fb(-1). The measured fractions of longitudinally, left-and right-handed polarization are F-0 = 0.67 +/- 0.07, F-L = 0.32 +/- 0.04 and F-R = 0.01 +/- 0.05, in agreement with the Standard Model predictions. As the polarization of the W bosons in top quark decays is sensitive to the Wtb vertex Lorentz structure and couplings, the measurements were used to set limits on anomalous contributions to the Wtb couplings.
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