Performance of heavy-flavour jet identification in Lorentz-boosted topologies in proton-proton collisions at √(s) = 13 TeV
Measurements in the highly Lorentz-boosted regime provoke increased interest in probing the Higgs boson properties and in searching for particles beyond the standard model at the LHC. In the CMS Collaboration, various boosted-object tagging algorithms, designed to identify hadronic jets originating from a massive particle decaying to bb̅ or cc̅, have been developed and deployed across a range of physics analyses. This paper highlights their performance on simulated events, and summarizes novel calibration techniques using proton-proton collision data collected at √(s) = 13 TeV during the 2016–2018 LHC data-taking period. Three dedicated methods are used for the calibration in multijet events, leveraging either machine learning techniques, the presence of muons within energetic boosted jets, or the reconstruction of hadronically decaying high-energy Z bosons. The calibration results, obtained through a combination of these approaches, are presented and discussed.
- Research Organization:
- ABC Federal U.; AGH-UST, Cracow; AUM, Kuwait; Aachen, Tech. Hochsch.; Adiyaman U.; Ain Shams U., Cairo; Alabama U.; Amity U.; Andes U., Bogota; Annecy, LAPP; Antioquia U.; Antwerp U.; Athens U.; Bangalore, Indian Inst. Sci.; Bari U.; Baylor U.; Beihang U.; Beijing, Inst. High Energy Phys.; Belgrade U.; Bethel Coll.; Bhubaneswar, Inst. Phys.; Bhubaneswar, NISER; Bingöl U.; Bogazici U.; Bologna U.; Boskovic Inst., Zagreb; Boston U.; Boston University, MA (United States); Brandenburg Tech. U.; Bristol U.; British U. in Egypt; Brown U.; Brown Univ., Providence, RI (United States); Brunel U.; Brussels U.; Bucharest, IFIN-HH; Budapest, RMKI; CC, Villeurbanne; CERN; CHEP, Taegu; CINVESTAV, IPN; Cairo U.; Cairo, Acad. Sci. Res. Tech.; Caltech; Cantabria Inst. of Phys.; Canterbury U.; Carnegie Mellon U.; Catania U.; Catania, CSFNSM; Catholic U. America; Charles U.; Chonnam Natl. U.; Chulalongkorn U.; Colombo U.; Colorado U.; Conacyt, Mexico; Cornell U.; Cukurova U.; Cyprus U.; DESY; Debrecen, Inst. Nucl. Res.; Delhi U.; Democritos Nucl. Res. Ctr.; EKU KRC, Gyongyos; Ecole Polytechnique; Eotvos U.; Erzincan U.; Fayoum U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Florida Inst. Tech.; Florida State U.; Florida U.; Frascati; Fudan U.; GTU, Tbilisi; Gangneung-Wonju Natl. U.; Gent U.; Guglielmo Marconi U.; Hacettepe U.; Hamburg U.; Hanyang U.; Haute Alsace U.; Hefei, CUST; Helsinki Inst. of Phys.; Helsinki U.; Helwan U.; Higher Sch. of Economics, Moscow; Hyderabad U.; IAS, Julich; IISER, Pune; INFN, Bari; INFN, Bologna; INFN, Catania; INFN, Florence; INFN, Genoa; INFN, Legnaro; INFN, Milan Bicocca; INFN, Naples; INFN, Padua; INFN, Pavia; INFN, Perugia; INFN, Pisa; INFN, Rome; INFN, Trieste; INFN, Turin; IP2I, Lyon; IPM, Tehran; IRFU, Saclay; Iberoamericana U.; Illinois U., Chicago; Imperial Coll., London; Indian Inst. Tech., Bhubaneswar; Indian Inst. Tech., Madras; Inst. Scintill. Mat., Kharkiv; Ioannina U.; Iowa U.; Isfahan Tech. U.; Istanbul Tech. U.; Istanbul U.; Istinye U., Istanbul; Johns Hopkins U.; KIT, Karlsruhe, EKP; KIT, Karlsruhe, IKP; Kafkas U.; Kansas State U.; Kansas U.; Karamanoglu Mehmetbey U., Karaman; Kharkov, KIPT; Korea U.; Kuwait U.; Kyung Hee U.; LIP, Lisbon; Lappeenranta U. Tech.; Louvain U.; MIT; Madrid, Autonoma U.; Madrid, CIEMAT; Malaya U.; Marmara U.; Maryland U.; Middle East Tech. U., Ankara; Milan Bicocca U.; Minnesota U.; Monash U.; Montenegro U.; NCBJ, Swierk; NICPB, Tallinn; Nanjing Normal U.; Naples U.; Natl. Tech. U., Athens; Naval Academy, Annapolis; Nebraska U.; Northeastern U.; Northwestern U.; Notre Dame U.; Ohio State U.; Oviedo U.; PSI, Villigen; Panjab U.; Peking U.; Perugia U.; Pisa U.; Pisa, Scuola Normale Superiore; Princeton U.; Puebla U., Inst. Fis.; Puerto Rico U., Mayaguez; Purdue U.; Purdue U., Calumet; Quaid-i-Azam U.; Quito, Escuela Politecnica Natl.; Rice U.; Riga Tech. U.; Rio Grande do Sul U.; Rio de Janeiro State U.; Rio de Janeiro, CBPF; Rochester U.; Rome U.; Ruhuna U.; Rutgers U., Piscataway; Rutherford; SUNY, Buffalo; SYSU, Guangzhou; Saha Inst.; San Francisco de Quito U.; Sejong U.; Seoul Natl. U.; Seoul U.; Shanghai U. Sci. Tech.; Sharif U. of Tech.; Sinop U.; Sofiya U.; Sofiya, Inst. Nucl. Res.; Sonora U.; South China Normal U.; Southampton U.; Split Tech. U.; Split U.; Stefan Meyer Inst. Subatomare Phys.; Strasbourg, IPHC; Sungkyunkwan U.; TIFR, Mumbai, DHEP; TU Vienna; Taiwan, Natl. Central U.; Taiwan, Natl. Taiwan U.; Tarapaca U.; Tashkent, IYF; Tata Inst.; Tbilisi State U.; Tennessee U.; Texas A&M U. Qatar, Doha; Texas A-M; Texas Tech.; Tsinghua U., Beijing; Turin U.; U. Campinas; U. Debrecen, Inst. Phys.; UC, Davis; UC, Riverside; UC, San Diego; UC, Santa Barbara; UCAS, Beijing; UCLA; USTM, Behshahr; Univ. of Colorado, Boulder, CO (United States); University Coll., Dublin; Unlisted; VINCA Inst. Nucl. Sci., Belgrade; Vanderbilt U.; Vienna, OAW; Vilnius U.; Virginia U.; Visva Bharati U.; Vrije U., Brussels; Warsaw U.; Warsaw U. of Tech.; Wayne State U.; Wisconsin U., Madison; Yerevan Phys. Inst.; Yildiz Tech. U.; Yonsei U.; Zewail City Sci. Technol., Giza; Zhejiang U.; Zurich U.; Zurich, ETH
- Sponsoring Organization:
- US Department of Energy; USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- CMS Collaboration; The CMS collaboration
- Grant/Contract Number:
- 89243024CSC000002; SC0010005; SC0010010; SC0016021
- OSTI ID:
- 3006590
- Report Number(s):
- CERN-EP-2025-161; CMS-BTV-22-001; FERMILAB-PUB-25-0760-CMS
- Journal Information:
- Journal of Instrumentation, Journal Name: Journal of Instrumentation Journal Issue: 11 Vol. 20; ISSN 1748-0221
- Publisher:
- IOP PublishingCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Search for a massive resonance decaying into a Higgs boson and a W or Z boson in hadronic final states in proton-proton collisions at √s = 8 TeV
A continuous calibration of the ATLAS flavour-tagging classifiers via optimal transportation maps