期刊
EUROPEAN PHYSICAL JOURNAL C
卷 73, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-013-2301-5
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资金
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWF, Austria
- ANAS, Azerbaijan
- SSTC, Belarus
- CNPq
- FAPESP, Brazil
- NSERC
- NRC
- CFI, Canada
- CERN
- CONICYT, Chile
- CAS
- MOST
- NSFC, China
- COLCIENCIAS, Colombia
- MSMT CR
- MPO CR
- VSC CR, Czech Republic
- DNRF
- DNSRC
- Lundbeck Foundation, Denmark
- EPLANET
- ERC, European Union
- IN2P3-CNRS
- CEA-DSM/IRFU, France
- GNAS, Georgia
- BMBF
- DFG
- HGF
- MPG
- AvH Foundation, Germany
- GSRT, Greece
- ISF
- MINERVA
- GIF
- DIP
- Benoziyo Center, Israel
- INFN, Italy
- MEXT
- JSPS, Japan
- CNRST, Morocco
- FOM
- NWO, Netherlands
- RCN, Norway
- MNiSW, Poland
- GRICES
- FCT, Portugal
- MERYS (MECTS), Romania
- MES of Russia
- ROSATOM, Russian Federation
- JINR
- MSTD, Serbia
- MSSR, Slovakia
- ARRS
- MVZT, Slovenia
- DST/NRF, South Africa
- MICINN, Spain
- SRC
- Wallenberg Foundation, Sweden
- SER
- SNSF
- Cantons of Bern
- Geneva, Switzerland
- NSC, Taiwan
- TAEK, Turkey
- STFC
- Royal Society
- Leverhulme Trust, United Kingdom
- DOE
- NSF, United States of America
- Science and Technology Facilities Council [ST/L000970/1 ATLAS Upgrades, ST/I005811/1, ST/L003325/1, PP/E000347/1, ST/K001361/1 LHCb Upgrades, ST/L003112/1, ST/L00352X/1, ST/H001042/1, ST/H001042/2, ST/H001093/1, ST/K001361/1, ST/K501840/1, ST/K001337/1, ST/K001264/1 ATLAS, ST/H00095X/2, 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/K000659/1, ST/L000970/1 ATLAS Upgrade, ST/K003658/1 GRIDPP, ST/K001329/1 ATLAS, ST/I003142/1, PP/E000487/1, ST/M001474/1, ST/M000664/1, ST/J501074/1, ST/K003658/1, ST/J004804/1, ST/I005803/1, ST/K001310/1 ATLAS, ST/K001361/1 MINOS/MINOS+, ST/H001069/2, ST/L001004/1, ST/M001512/1, ST/M001431/1, PP/E003699/1, ST/G502320/1, ST/K00137X/1, ST/H001158/1, ST/K501840/1 GRIDPP, ST/H00095X/1, ST/H001093/2, ST/H001158/2, ST/K003437/1 GRIDPP, ST/J004944/1, ST/K001418/1, ATLAS, ST/K00140X/1, ST/K001426/1 ATLAS, ST/K001310/1 LHCb, ST/J004928/1 ATLAS Upgrade, ST/K001361/1 LHCb, ST/L000970/1, ST/F007418/1, ST/H00100X/1, ST/J004928/1 ATLAS Upgrades, ST/K50208X/1, ST/K001248/1 ATLAS, PP/E000355/1, ST/K003496/1 GRIDPP, ST/K001361/1 ATLAS Upgrades, ST/K000713/1, ST/K000705/1, ST/J005576/1, ST/K001310/1 LHCb Upgrades, ST/K003496/1, ST/K001388/1, ST/I000186/1, ST/J005568/1, ST/K001337/1 ATLAS, ST/I006080/1, ST/J004928/1, PP/E003087/1, ST/I003517/1, ST/H00100X/2, ST/L001144/1, ST/J005541/1, ST/F00754X/1, ST/K001310/1, ST/J004936/1, ST/K003437/1, PP/E003699/2, GRIDPP, ST/J005460/1, ST/K00073X/1, ST/I505756/1, ST/K001310/1 ATLAS Upgrades, ST/F007337/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1206092, 1119200] Funding Source: National Science Foundation
- STFC [ST/J005568/1, ST/M000761/1, ST/L001195/1, ST/L001144/1, ST/J004936/1, ST/L001004/1, ST/I006080/1, ST/H00100X/1, ST/K50208X/1, ST/I005811/1, ST/H001042/1, ST/K000659/1, PP/E000355/1, ST/J004928/1, ST/K003658/1, ST/J004804/1, ST/G502320/1, PP/E000487/1, ST/H001093/1, ST/K003496/1, ST/K501840/1, ST/I003142/1, ST/M000753/1, ST/F007418/1, PP/E002757/1, ST/H00095X/1, ST/K000705/1, ST/J501074/1, ST/K00140X/1, ST/F007337/1, ST/H001042/2, ST/J004944/1, ST/L003325/1, ST/H001158/2, PP/E003699/2, ST/L00352X/1, ST/H00100X/2, PP/E000347/1, ST/K001337/1, ST/F00754X/1, PP/E003699/1, ST/M001512/1, ST/K00137X/1, ST/K00073X/1, ST/J005541/1, ST/K001248/1, ST/H001093/2, ST/K003437/1, ST/I505756/1, ST/M001431/1, ST/K001329/1, ST/H001158/1, ST/I003517/1, ST/K001388/1, ST/L003112/1, ST/I000186/1, PP/E003087/1, ST/J005460/1, ST/I005803/1, ST/I003525/1, ST/H00095X/2, ST/K001361/1, ST/L000970/1, ST/M000664/1, ST/K000713/1, ST/H001069/2, ST/J005576/1] Funding Source: UKRI
- ICREA Funding Source: Custom
This paper describes a measurement of the flavour composition of dijet events produced in pp collisions at root s = 7 TeV using the ATLAS detector. The measurement uses the full 2010 data sample, corresponding to an integrated luminosity of 39 pb(-1). Six possible combinations of light, charm and bottom jets are identified in the dijet events, where the jet flavour is defined by the presence of bottom, charm or solely light flavour hadrons in the jet. Kinematic variables, based on the properties of displaced decay vertices and optimised for jet flavour identification, are used in a multidimensional template fit to measure the fractions of these dijet flavour states as functions of the leading jet transverse momentum in the range 40 GeV to 500 GeV and jet rapidity vertical bar y vertical bar < 2.1. The fit results agree with the predictions of leading-and next-to-leading-order calculations, with the exception of the dijet fraction composed of bottom and light flavour jets, which is underestimated by all models at large transverse jet momenta. The ability to identify jets containing two b-hadrons, originating from e. g. gluon splitting, is demonstrated. The difference between bottom jet production rates in leading and subleading jets is consistent with the next-to-leading-order predictions.
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