期刊
EUROPEAN PHYSICAL JOURNAL C
卷 76, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-016-4507-9
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资金
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWFW, Austria
- FWF, 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
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNSF, Georgia
- BMBF, Germany
- HGF, Germany
- MPG, Germany
- GSRT, Greece
- RGC, Hong Kong SAR, China
- ISF, Israel
- I-CORE, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- FCT, Portugal
- MNE/IFA, Romania
- MES of Russia, Russian Federation
- NRC KI, Russian Federation
- JINR
- MESTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZS, Slovenia
- DST/NRF, South Africa
- MINECO, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SERI, Switzerland
- SNSF, Switzerland
- Cantons of Bern and Geneva, Switzerland
- MOST, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- DOE, United States of America
- NSF, United States of America
- BCKDF
- Canada Council, Canada
- CANARIE, Canada
- CRC, Canada
- Compute Canada, Canada
- FQRNT, Canada
- Ontario InnovationTrust, Canada
- EPLANET, European Union
- ERC, European Union
- FP7, European Union
- Horizon 2020, European Union
- Marie Sklodowska-Curie Actions, European Union
- Investissements d'Avenir Labex and Idex, France
- ANR, France
- Region Auvergne, France
- Fondation Partager le Savoir, France
- DFG, Germany
- AvH Foundation, Germany
- Herakleitos programme - EU-ESF
- Thales programme - EU-ESF
- Aristeia programme - EU-ESF
- Greek NSRF
- BSF, Israel
- GIF, Israel
- Minerva, Israel
- BRF, Norway
- Generalitat de Catalunya, Spain
- Generalitat Valenciana, Spain
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- ICREA Funding Source: Custom
- Direct For Mathematical & Physical Scien
- Division Of Physics [1119200, 1410972] Funding Source: National Science Foundation
- STFC [ST/L005662/1, ST/L001144/1, ST/K003666/1, ST/M006417/1, ST/L006162/1, ST/I005846/1, ST/J004804/1, ST/J005533/1, ST/N000307/1, ST/M000753/1, ST/L000997/1, ST/N000463/1, ST/N000331/1, ST/N000420/1, ST/K001361/1, ST/N000277/1, ST/N000234/1, ST/L003449/1, ST/K001329/1, ST/M001431/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/L005662/1, ST/N000331/1, ST/N000307/1, ST/L001144/1, PP/E000444/1, GRIDPP, ST/K003666/1, ST/L003449/1, ST/K001329/1, ATLAS, ST/N000277/1, ST/N000463/1, ST/M000753/1, ST/M001431/1, ST/N000234/1, ST/J004804/1, ST/J005533/1, ST/L006162/1, ST/K001329/1 ATLAS, ST/M006417/1, ST/N000420/1, ST/I005846/1, 1366825, ST/K001361/1, ST/L000997/1] Funding Source: researchfish
The algorithms used by the ATLAS Collaboration to reconstruct and identify prompt photons are described. Measurements of the photon identification efficiencies are reported, using 4.9 fb(-1) of pp collision data collected at the LHC at root s = 7 TeV and 20.3 fb-1 at root s = 8 TeV. The efficiencies are measured separately for converted and unconverted photons, in four different pseudorapidity regions, for transverse momenta between 10 GeV and 1.5 TeV. The results from the combination of three data-driven techniques are compared to the predictions from a simulation of the detector response, after correcting the electromagnetic shower momenta in the simulation for the average differences observed with respect to data. Data-to-simulation efficiency ratios used as correction factors in physics measurements are determined to account for the small residual efficiency differences. These factors are measured with uncertainties between 0.5% and 10% in 7 TeV data and between 0.5% and 5.6% in 8 TeV data, depending on the photon transverse momentum and pseudorapidity.
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