期刊
JOURNAL OF INSTRUMENTATION
卷 15, 期 9, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1748-0221/15/09/P09018
关键词
Calorimeter methods; Calorimeters; Large detector-systems performance
资金
- FWF (Austria)
- FNRS (Belgium)
- FWO (Belgium)
- CNPq (Brazil)
- CAPES (Brazil)
- FAPERJ (Brazil)
- FAPERGS (Brazil)
- FAPESP (Brazil)
- MES (Bulgaria)
- MoST (China)
- NSFC (China)
- COLCIENCIAS (Colombia)
- CSF (Croatia)
- SENESCYT (Ecuador)
- MoER (Estonia)
- ERDF (Estonia)
- Academy of Finland (Finland)
- MEC (Finland)
- CEA (France)
- CNRS/IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- HGF (Germany)
- GSRT (Greece)
- NKFIA (Hungary)
- DAE (India)
- DST (India)
- IPM (Iran)
- SFI (Ireland)
- INFN (Italy)
- NRF (Republic of Korea)
- MES (Latvia)
- MOE (Malaysia)
- UM (Malaysia)
- BUAP (Mexico)
- CONACYT (Mexico)
- UASLP-FAI (Mexico)
- FCT (Portugal)
- JINR (Dubna)
- RosAtom (Russia)
- RFBR (Russia)
- MESTD (Serbia)
- SEIDI (Spain)
- FEDER (Spain)
- MOSTR (Sri Lanka)
- NSTDA (Thailand)
- TUBITAK (Turkey)
- TAEK (Turkey)
- NASU (Ukraine)
- DOE (U.S.A.)
- NSF (U.S.A.)
- Marie-Curie program (European Union)
- European Research Council (European Union)
- Horizon 2020 Grant (European Union) [675440, 752730, 765710]
- Leventis Foundation
- A.P. Sloan Foundation
- Alexander von Humboldt Foundation
- Belgian Federal Science Policy Office
- Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
- Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium)
- FWO (Belgium) [30820817]
- Beijing Municipal Science & Technology Commission [Z191100007219010]
- Ministry of Education, Youth and Sports (MEYS) of the Czech Republic
- Deutsche Forschungsgemeinschaft (DFG) under Germany's Excellence Strategy -EXC 2121 Quantum Universe [390833306]
- HungarianAcademy of Sciences (Hungary)
- Council of Science and Industrial Research, India
- HOMING PLUS program of the Foundation for Polish Science
- European Union, Regional Development Fund
- National Science Center (Poland) [Harmonia 2014/14/M/ST2/00428, Opus 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861, Sonata-bis 2012/07/E/ST2/01406]
- National Priorities Research Program by Qatar National Research Fund
- Ministry of Science and Education (Russia) [14.W03.31.0026]
- Tomsk Polytechnic University Competitiveness Enhancement Program (Russia)
- Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia Maria de Maeztu [MDM-20150509]
- Programa Severo Ochoa del Principado de Asturias
- Thalis program
- EU-ESF
- Greek NSRF
- Rachadapisek Sompot Fund for Postdoctoral Fellowship, Chulalongkorn University (Thailand)
- Kavli Foundation
- Nvidia Corporation
- SuperMicro Corporation [C-1845]
- NKFIA (Hungary) [123842, 123959, 124845, 124850, 125105, 128713, 128786, 129058]
- BMBWF (Austria)
- CERN
- CAS (China)
- MSES (Croatia)
- RPF (Cyprus)
- ERC IUT (Estonia)
- PUT (Estonia)
- HIP (Finland)
- MSIP (Republic of Korea)
- LAS (Lithuania)
- CINVESTAV (Mexico)
- LNS (Mexico)
- SEP (Mexico)
- MOS (Montenegro)
- MBIE (New Zealand)
- PAEC (Pakistan)
- MSHE (Poland)
- NSC (Poland)
- MON (Russia)
- RAS (Russia)
- NRC KI (Russia)
- CPAN (Spain)
- PCTI (Spain)
- MST (Taipei)
- ThEPCenter (Thailand)
- IPST (Thailand)
- STAR (Thailand)
- STFC (United Kingdom)
- F.R.S.-FNRS (Belgium)
- NewNational Excellence Program UNKP (Hungary)
- Ministry of Science and Higher Education
- Nauka Project (Russia) [FSWW-2020-0008]
- Chulalongkorn Academic into Its 2nd Century Project Advancement Project (Thailand)
- Welch Foundation [C-1845]
- Weston Havens Foundation (U.S.A.)
- Aristeia program
- Science and Technology Facilities Council [ST/L005603/1, ST/K001639/1, ST/N001273/1, ST/M004775/1, ST/H000925/2, ST/K003542/1] Funding Source: researchfish
- STFC [ST/N001273/1, ST/K001639/1, ST/S00078X/1, ST/K003542/1, ST/M004775/1, ST/L005603/1, ST/S000739/1, ST/H000925/2] Funding Source: UKRI
With increasing instantaneous luminosity at the LHC come additional reconstruction challenges. At high luminosity, many collisions occur simultaneously within one proton-proton bunch crossing. The isolation of an interesting collision from the additional pileup collisions is needed for effective physics performance. In the CMS Collaboration, several techniques capable of mitigating the impact of these pileup collisions have been developed. Such methods include charged-hadron subtraction, pileup jet identification, isospin-based neutral particle delta beta correction, and, most recently, pileup per particle identification. This paper surveys the performance of these techniques for jet and missing transverse momentum reconstruction, as well as muon isolation. The analysis makes use of data corresponding to 35.9 fb(-1) collected with the CMS experiment in 2016 at a center-of-mass energy of 13 TeV. The performance of each algorithm is discussed for up to 70 simultaneous collisions per bunch crossing. Significant improvements are found in the identification of pileup jets, the jet energy, mass, and angular resolution, missing transverse momentum resolution, and muon isolation when using pileup per particle identification.
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