Measurement of the production cross section for a W boson in association with a charm quark in proton–proton collisions at $$\sqrt{s} = 13\,\hbox {TeV}$$
Journal Article
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· Eur.Phys.J.C
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The strange quark content of the proton is probed through the measurement of the production cross section for a W boson and a charm (c) quark in proton–proton collisions at a center-of-mass energy of 13$$\,\text {Te}\hspace{-.08em}\text {V}$$. The analysis uses a data sample corresponding to a total integrated luminosity of 138$$\,\text {fb}^{-1}$$ collected with the CMS detector at the LHC. The W bosons are identified through their leptonic decays to an electron or a muon, and a neutrino. Charm jets are tagged using the presence of a muon or a secondary vertex inside the jet. The $$\hbox {W}+\hbox {c}$$ production cross section and the cross section ratio $$R_\textrm{c}^{\pm }= \sigma ({\hbox {W}}^{+}+\bar{\text {c}})/\sigma (\hbox {W}^{-}+{\textrm{c}})$$ are measured inclusively and differentially as functions of the transverse momentum and the pseudorapidity of the lepton originating from the W boson decay. The precision of the measurements is improved with respect to previous studies, reaching 1% in $$R_\textrm{c}^{\pm }= 0.950 \pm 0.005\,\text {(stat)} \pm 0.010 \,\text {(syst)} $$. The measurements are compared with theoretical predictions up to next-to-next-to-leading order in perturbative quantum chromodynamics.
- Research Organization:
- ABC Federal U.; AGH-UST, Cracow; AUM, Kuwait; Aachen, Tech. Hochsch.; Adiyaman U.; Ain Shams U., Cairo; Alabama U.; Andes U., Bogota; Annecy, LAPP; Antioquia U.; Antwerp U.; Athens U.; Bangalore, Indian Inst. Sci.; Bari U.; Baylor U.; Beijing, GUCAS; Beijing, Inst. High Energy Phys.; Belgrade U.; Bethel Coll.; Bhabha Atomic Res. Ctr.; Bhubaneswar, Inst. Phys.; Bhubaneswar, NISER; Bingöl U.; Bogazici U.; Boskovic Inst., Zagreb; Boston U.; Brandenburg Tech. U.; Bristol U.; British U. in Egypt; Brown U.; Brunel U.; Brussels U.; Budapest, RMKI; CERN; CHEP, Taegu; CINVESTAV, IPN; Cairo U.; Cairo, Acad. Sci. Res. Tech.; Caltech; Cantabria Inst. of Phys.; Carnegie Mellon U.; Catania U.; 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; ENEA, Bologna; Ecole Polytechnique; Eotvos U.; Erzincan U.; Fayoum U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Florence U.; Florida Inst. Tech.; Florida State U.; Florida U.; Frascati; Fudan U.; GTU, Tbilisi; Gent U.; Guglielmo Marconi U.; Hamburg U.; Hanyang U.; Haute Alsace U.; Hefei, CUST; Helsinki Inst. of Phys.; Helsinki U.; Helwan 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.; Ilia State 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 U.; Istanbul, Tech. U.; Johns Hopkins U.; KIT, Karlsruhe, EKP; KIT, Karlsruhe, IKP; Kafkas U.; Kansas State U.; Kansas U.; Karamanoglu Mehmetbey U., Karaman; Kharkov, KIPT; Korea U.; Kyung Hee U.; LIP, Lisbon; Lappeenranta U. Tech.; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Louvain U.; Louvain U., CP3; MIT; Madrid, Autonoma U.; Madrid, CIEMAT; Malaya U.; Marmara U.; Maryland U.; Middle East Tech. U., Ankara; Milan Bicocca U.; Minnesota U.; Mississippi U.; Monash U.; Montenegro U.; NCBJ, Swierk; NICPB, Tallinn; Nanjing Normal U.; Naples U.; Natl. Tech. U., Athens; Naval Academy, Annapolis; Nebraska U.; Necmettin Erbakan U., Konya; Northeastern U.; Northwestern U.; Notre Dame U.; Ohio State U.; Oviedo U.; PSI, Villigen; Panjab U.; Peking U.; Perugia U.; Piemonte Orientale U., Alessandria; 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.; Rockefeller 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.; Sharif U. of Tech.; Sinop U.; Sofiya U.; Sofiya, Inst. Nucl. Res.; Sonora 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; Tennessee U.; Texas A&M U. Qatar, Doha; Texas A-M; Texas Tech.; Trento U.; Tsinghua U., Beijing; Turin U.; U. Campinas; U. Debrecen, Inst. Phys.; UC, Davis; UC, Riverside; UC, San Diego; UC, Santa Barbara; UCLA; USTM, Behshahr; 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.; Wayne State U.; Wisconsin U., Madison; Yerevan Phys. Inst.; Yildiz Tech. U.; Yonsei U.; Zhejiang U.; Zurich U.; Zurich, ETH
- Sponsoring Organization:
- US Department of Energy
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1996513
- Report Number(s):
- CERN-EP-2023-105; CMS-SMP-21-005; FERMILAB-PUB-23-446-CMS; oai:inspirehep.net:2685711; arXiv:2308.02285
- Journal Information:
- Eur.Phys.J.C, Journal Name: Eur.Phys.J.C Vol. 84
- Country of Publication:
- United States
- Language:
- English
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