期刊
JOURNAL OF INSTRUMENTATION
卷 11, 期 -, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1748-0221/11/04/P04008
关键词
Large detector systems for particle and astroparticle physics; Large detector-systems performance; Pattern recognition, cluster finding, calibration and fitting methods; Performance of High Energy Physics Detectors
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
- Lundbeck Foundation, Denmark
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNSF, Georgia
- BMBF, Germany
- HGF, Germany
- MPG, Germany
- GSRT, Greece
- RGC, China
- 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
- 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, Geneva, Switzerland
- SNSF, Geneva, Switzerland
- Cantons of Bern, Geneva, Switzerland
- MOST, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- DOE, United States of America
- NSF, United States of America
- BCKDF
- Canada Council
- CANARIE
- CRC
- Compute Canada
- FQRNT
- Ontario Innovation Trust, Canada
- EPLANET
- ERC
- FP7
- Horizon 2020
- Marie Sklodowska-Curie Actions
- European Union
- Investissements d'Avenir Labex and Idex
- ANR
- Region Auvergne and Fondation Partager le Savoir, France
- DFG, Germany
- AvH Foundation, Germany
- EU-ESF
- Greek NSRF
- BSF
- GIF
- Minerva, Israel
- BRF, Norway
- Royal Society
- Leverhulme Trust, United Kingdom
- ICREA Funding Source: Custom
- Science and Technology Facilities Council [1090338, 1093272, ST/N000331/1, 1366825, PP/E000444/1, GRIDPP, ST/N000463/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [1119200] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1410972, 1506173] Funding Source: National Science Foundation
The identification of jets containing b hadrons is important for the physics programme of the ATLAS experiment at the Large Hadron Collider. Several algorithms to identify jets containing b hadrons are described, ranging from those based on the reconstruction of an inclusive secondary vertex or the presence of tracks with large impact parameters to combined tagging algorithms making use of multi-variate discriminants. An independent b-tagging algorithm based on the reconstruction of muons inside jets as well as the b-tagging algorithm used in the online trigger are also presented. The b-jet tagging efficiency, the c-jet tagging efficiency and the mistag rate for light flavour jets in data have been measured with a number of complementary methods. The calibration results are presented as scale factors defined as the ratio of the efficiency (or mistag rate) in data to that in simulation. In the case of b jets, where more than one calibration method exists, the results from the various analyses have been combined taking into account the statistical correlation as well as the correlation of the sources of systematic uncertainty.
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