Journal
JOURNAL OF INSTRUMENTATION
Volume 9, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1748-0221/9/09/P09009
Keywords
Particle tracking detectors; Particle tracking detectors (Solid-state detectors)
Categories
Funding
- ANPCyT, Argentina
- YerPhI, Armenia
- ARC, Australia
- BMWF, 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
- EPLANET, European Union
- ERC, European Union
- NSRF, European Union
- IN2P3-CNRS, France
- CEA-DSM/IRFU, France
- GNSF, Georgia
- BMBF, Germany
- DFG, Germany
- HGF, Germany
- MPG, Germany
- AvH Foundation, Germany
- GSRT, Greece
- NSRF, Greece
- ISF, Israel
- MINERVA, Israel
- GIF, Israel
- I-CORE, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- FOM, Netherlands
- NWO, Netherlands
- BRF, Norway
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- GRICES, Portugal
- FCT, Portugal
- MNE/IFA, Romania
- MES of Russia
- ROSATOM, Russian Federation
- JINR
- MSTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZS, Slovenia
- DST/NRF, South Africa
- MINECO, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SER, Switzerland
- SNSF, Switzerland
- Canton of Bern, Switzerland
- Canton of Geneva, Switzerland
- NSC, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- DOE, United States of America
- NSF, United States of America
- Science and Technology Facilities Council [ST/M006999/1 ATLAS Upgrades, ST/I006056/1 ATLAS Upgrade, ST/L005883/1 ATLAS Upgrades, ST/I006056/1 ATLAS Upgrades, PP/E000355/1, ST/K50208X/1, ST/J005487/1, ST/K001361/1 ATLAS Upgrades, ST/K001310/1 ATLAS Upgrades, ATLAS, ST/K001418/1, ST/I006056/1, ST/J004944/1, ST/K003437/1 GRIDPP, ST/H001093/2, ST/H00095X/1, ST/K501840/1 GRIDPP, ST/L001330/1, ST/L001179/1, ST/K00137X/1, ST/L001209/1 ATLAS Upgrades, ST/G502320/1, ST/M001431/1, ST/M001512/1, ST/L001330/1 ATLAS Upgrade, ST/I00372X/1 GRIDPP, ST/H001026/1, ST/H001069/2, ST/K001361/1 MINOS/MINOS+, ST/K001310/1 ATLAS, ST/H001026/2, ST/M007103/1 ATLAS Upgrades, ST/I005803/1, ST/J005533/1, ST/L001179/1 ATLAS Upgrades, ST/K003658/1, ST/J501074/1, ST/M000664/1, ST/L001330/1 ATLAS Upgrades, ST/M001474/1, ST/J005525/1, PP/E000487/1, PP/D002915/1, ST/K006142/1 ATLAS Upgrades, ST/K001329/1 ATLAS, ST/M002071/1 ATLAS Upgrades, ST/K003658/1 GRIDPP, ST/I000178/1, ST/K001396/1 ATLAS, ST/L000970/1 ATLAS Upgrade, ST/K000659/1, ST/M002306/1 ATLAS Upgrades, PP/E002757/1, ST/L001195/1, ST/G50228X/1, ST/M003213/1, ST/K00140X/1 ATLAS, ST/K001361/1 ATLAS, ST/K001248/1, ST/M000761/1, ST/I005803/1 GRIDPP, ATLAS Upgrades, ST/H00095X/2, ST/K001264/1 ATLAS, ST/K001337/1, ST/K001302/1, ST/K501840/1, ST/K001361/1, ST/H001093/1, ST/H001042/2, ST/H001042/1, ST/L00352X/1, ST/L003112/1, ST/K001361/1 LHCb Upgrades, PP/E000347/1, ST/J00474X/1, ST/I00372X/1, ST/L003325/1, ST/I005811/1, ST/K000713/1, ST/K502236/1, ST/K000705/1, ST/J005576/1, ST/K001310/1 LHCb Upgrades, ST/K001388/1, ST/I000186/1, ST/K001337/1 ATLAS, ST/M006999/1, ST/K006142/1, ST/K00140X/1, ST/K001426/1 ATLAS, ST/K001310/1 LHCb, ST/L003511/1, ST/J004928/1 ATLAS Upgrade, ST/K001361/1 LHCb, ST/L000970/1, ST/F007418/1, ST/H00100X/1, ST/J002798/1, ST/L001179/1 ATLAS Upgrade, ST/M002306/1, ST/I505756/1, ST/K00073X/1, ST/J005460/1, GRIDPP, ST/K003437/1, ST/L006464/1, PP/E000444/1, ST/K001310/1, ST/F00754X/1, ST/J00474X/1 ATLAS Upgrades, ST/M001733/1, ST/L005883/1, PP/E002846/1, ST/J500641/1, ST/L001144/1, ST/H00100X/2, PP/E003087/1, ST/J004928/1, ST/I006080/1, ST/M000060/1, ST/K006142/1 ATLAS Upgrade] Funding Source: researchfish
- STFC [ST/I005803/1, ST/J005460/1, PP/E003087/1, ST/I000186/1, ST/L003112/1, ST/I000178/1, ST/K001388/1, ST/L005883/1, ATLAS Upgrades, ST/M001733/1, ST/J002798/1, ST/K502236/1, ST/M001431/1, ST/I505756/1, ST/H001093/2, ST/G50228X/1, ST/K001248/1, ST/K00073X/1, ST/K00137X/1, ST/I006056/1, ST/M001512/1, ST/H001026/2, ST/K001337/1, PP/E000347/1, ST/M000060/1, ST/J004928/1, PP/E002846/1, PP/E000355/1, ST/K000659/1, ST/I005811/1, ST/H00100X/2, ST/K003658/1, ST/I00372X/1, ST/K50208X/1, PP/D002915/1, ST/H001042/1, ST/L001179/1, ST/G502320/1, PP/E000487/1, ST/I006080/1, ST/J005533/1, ST/L001195/1, ST/F00754X/1, ST/H001093/1, ST/K501840/1, ST/L006464/1, ST/H001026/1, ST/J005487/1, ST/J005525/1, ST/F007418/1, ST/K006142/1, PP/E002757/1, ST/H00095X/1, ST/K000705/1, ST/J501074/1, ST/L001330/1, ST/J500641/1, ST/J00474X/1, ST/M003213/1, ST/K00140X/1, ST/H001042/2, ST/J004944/1, ST/L003325/1, ST/K001302/1, ST/L003511/1, ST/M002306/1, ST/L00352X/1, ST/M000761/1, ST/J005576/1, ST/K003437/1, ST/H001069/2, ST/M006999/1, ST/K000713/1, ST/M000664/1, ST/L000970/1, ST/K001361/1, ST/H00095X/2, ST/H00100X/1, ST/L001144/1] Funding Source: UKRI
- ICREA Funding Source: Custom
- Division Of Physics
- Direct For Mathematical & Physical Scien [1119200] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [24684016] Funding Source: KAKEN
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A novel technique to identify and split clusters created by multiple charged particles in the ATLAS pixel detector using a set of artificial neural networks is presented. Such merged clusters are a common feature of tracks originating from highly energetic objects, such as jets. Neural networks are trained using Monte Carlo samples produced with a detailed detector simulation. This technique replaces the former clustering approach based on a connected component analysis and charge interpolation. The performance of the neural network splitting technique is quantified using data from proton-proton collisions at the LHC collected by the ATLAS detector in 2011 and from Monte Carlo simulations. This technique reduces the number of clusters shared between tracks in highly energetic jets by up to a factor of three. It also provides more precise position and error estimates of the clusters in both the transverse and longitudinal impact parameter resolution.
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