期刊
EUROPEAN PHYSICAL JOURNAL C
卷 81, 期 4, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-021-09054-3
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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
- ANID, 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-DRF/IRFU, France
- SRNSFG, Georgia
- BMBF, Germany
- HGF, Germany
- MPG, Germany
- GSRT, Greece
- RGC, China
- Hong Kong SAR, China
- ISF, Israel
- Benoziyo Center, Israel
- INFN, Italy
- MEXT, Japan
- JSPS, Japan
- CNRST, Morocco
- NWO, Netherlands
- RCN, Norway
- MNiSW, Poland
- NCN, Poland
- FCT, Portugal
- MNE/IFA, Romania
- JINR
- MESofRussia, Russian Federation
- NRCKI, Russian Federation
- MESTD, Serbia
- MSSR, Slovakia
- ARRS, Slovenia
- MIZS, Slovenia
- DST/NRF, South Africa
- MICINN, Spain
- SRC, Sweden
- Wallenberg Foundation, Sweden
- SERI, Switzerland
- SNSF, Switzerland
- Canton of Bern, Switzerland
- Canton of Geneva, Switzerland
- MOST, Taiwan
- TAEK, Turkey
- STFC, United Kingdom
- DOE, USA
- NSF, USA
- BCKDF, Canada
- CANARIE, Canada
- ComputeCanada, Canada
- CRC, Canada
- IVADO, Canada
- Beijing Municipal Science AMP
- Technology Commission, China
- COST, European Union
- ERC, European Union
- ERDF, European Union
- Horizon 2020, European Union
- Marie Sklodowska-Curie Actions, European Union
- Investissements d'Avenir Labex, France
- Investissements d'Avenir Idex, France
- ANR, France
- DFG, Germany
- AvH Foundation, Germany
- Herakleitos program - EU-ESF, Greece
- Thales program - EU-ESF, Greece
- Aristeia program - EU-ESF, Greece
- Greek NSRF, Greece
- BSF-NSF, Israel
- GIF, Israel
- La Caixa Banking Foundation, Spain
- CERCA Programme Generalitat de Catalunya, Spain
- PROMETEO Program Generalitat Valenciana, Spain
- GenT Program Generalitat Valenciana, Spain
- Goran Gustafssons Stiftelse, Sweden
- Royal Society, United Kingdom
- Leverhulme Trust, United Kingdom
- Science and Technology Facilities Council [ST/S000879/1] Funding Source: researchfish
Jet substructure has provided new opportunities for searches and measurements at the LHC, and the optimization of large-radius jet reconstruction for ATLAS has seen continuous development since Run 1. A new type of jet input object, called a 'unified flow object', combines calorimeter- and inner-detector-based signals to achieve optimal performance across a wide kinematic range, improving on the current ATLAS baseline definition.
Jet substructure has provided new opportunities for searches and measurements at the LHC, and has seen continuous development since the optimization of the large-radius jet definition used by ATLAS was performed during Run 1. A range of new inputs to jet reconstruction, pile-up mitigation techniques and jet grooming algorithms motivate an optimisation of large-radius jet reconstruction for ATLAS. In this paper, this optimisation procedure is presented, and the performance of a wide range of large-radius jet definitions is compared. The relative performance of these jet definitions is assessed using metrics such as their pileup stability, ability to identify hadronically decaying W bosons and top quarks with large transverse momenta. A new type of jet input object, called a 'unified flow object' is introduced which combines calorimeter- and inner-detector-based signals in order to achieve optimal performance across a wide kinematic range. Large-radius jet definitions are identified which significantly improve on the current ATLAS baseline definition, and their modelling is studied using pp collisions recorded by the ATLAS detector at root 8 = 13 TeV during 2017.
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