Precision measurement of the W boson decay branching fractions in proton-proton collisions at sqrt(s) = 13 TeV
Articolo
Data di Pubblicazione:
2022
Abstract:
The leptonic and inclusive hadronic decay branching fractions of the W boson are measured using proton-proton collision data collected at p s = 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of 35.9 fb???1. Events characterized by the production of one or two W bosons are selected and categorized based on the multiplicity and flavor of reconstructed leptons, the number of jets, and the number of jets identified as originating from the hadronization of b quarks. A binned maximum likelihood estimate of the W boson branching fractions is performed simultaneously in each event category. The measured branching fractions of the W boson decaying into electron, muon, and tau lepton final states are (10.83 ?? 0.10)%, (10.94 ?? 0.08)%, and (10.77 ?? 0.21)%, respectively, consistent with lepton flavor universality for the weak interaction. The average leptonic and inclusive hadronic decay branching fractions are estimated to be (10.89 ?? 0.08)% and (67.32 ?? 0.23)%, respectively. Based on the hadronic branching fraction, three standard model quantities are subsequently derived: the sum of squared elements in the first two rows of the Cabibbo???Kobayashi???Maskawa (CKM) matrix Pij IVijI2 = 1.984 ?? 0.021, the CKM element IVcsI = 0.967 ?? 0.011, and the strong coupling constant at the W boson mass scale, ??S(m2W) = 0.095 ?? 0.033.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
A. Tumasyan; W. Adam; J.???W. Andrejkovic; T. Bergauer; S. Chatterjee; M. Dragicevic; A. Escalante Del Valle; R. Fr??hwirth; M. Jeitler; N. Krammer; L. Lechner; D. Liko; I. Mikulec; P. Paulitsch; F.???M. Pitters; J. Schieck; R. Sch??fbeck; M. Spanring; S. Templ; W. Waltenberger; C.-E. Wulz; V. Chekhovsky; A. Litomin; V. Makarenko; M.???R. Darwish; E.???A. De Wolf; T. Janssen; T. Kello; A. Lelek; H. Rejeb Sfar; P. Van Mechelen; S. Van Putte; N. Van Remortel; F. Blekman; E.???S. Bols; J. D???Hondt; J. De Clercq; M. Delcourt; H.???El Faham; S. Lowette; S. Moortgat; A. Morton; D. M??ller; A.???R. Sahasransu; S. Tavernier; W. Van Doninck; P. Van Mulders; D. Beghin; B. Bilin; B. Clerbaux; G. De Lentdecker; L. Favart; A. Grebenyuk; A.???K. Kalsi; K. Lee; M. Mahdavikhorrami; I. Makarenko; L. Moureaux; L. P??tr??; A. Popov; N. Postiau; E. Starling; L. Thomas; M. Vanden Bemden; C. Vander Velde; P. Vanlaer; D. Vannerom; L. Wezenbeek; T. Cornelis; D. Dobur; J. Knolle; L. Lambrecht; G. Mestdach; M. Niedziela; C. Roskas; A. Samalan; K. Skovpen; M. Tytgat; W. Verbeke; B. Vermassen; M. Vit; A. Bethani; G. Bruno; F. Bury; C. Caputo; P. David; C. Delaere; I.???S. Donertas; A. Giammanco; K. Jaffel; Sa. Jain; V. Lemaitre; K. Mondal; J. Prisciandaro; A. Taliercio; M. Teklishyn; T.???T. Tran; P. Vischia; S. Wertz; G.???A. Alves; C. Hensel; A. Moraes; W.???L. Ald?? J??nior; M. Alves Gallo Pereira; M. Barroso Ferreira Filho; H. Brandao Malbouisson; W. Carvalho; J. Chinellato; E.???M. Da Costa; G.???G. Da Silveira; D. De Jesus Damiao; S. Fonseca De Souza; D. Matos Figueiredo; C. Mora Herrera; K. Mota Amarilo; L. Mundim; H. Nogima; P. Rebello Teles; A. Santoro; S.???M. Silva Do Amaral; A. Sznajder; M. Thiel; F. Torres Da Silva De Araujo; A. Vilela Pereira; C.???A. Bernardes; L. Calligaris; T. R. Fernandez Perez Tomei; E.???M. Gregores; D.???S. Lemos; P.???G. Mercadante; S.???F. Novaes; Sandra S. Padula; A. Aleksandrov; G. Antchev; R. Hadjiiska; P. Iaydjiev; M. Misheva; M. Rodozov; M. Shopova; G. Sultanov; A. Dimitrov; T. Ivanov; L. Litov; B. Pavlov; P. Petkov; A. Petrov; T. Cheng; Q. Guo; T. Javaid; M. Mittal; H. Wang; L. Yuan; M. Ahmad; G. Bauer; C. Dozen; Z. Hu; J. Martins; Y. Wang; K. Yi; E. Chapon; G.???M. Chen; H.???S. Chen; M. Chen; F. Iemmi; A. Kapoor; D. Leggat; H. Liao; Z.-A. Liu; V. Milosevic; F. Monti; R. Sharma; J. Tao; J. Thomas-Wilsker; J. Wang; H. Zhang; S. Zhang; J. Zhao; A. Agapitos; Y. An; Y. Ban; C. Chen; A. Levin; Q. Li; X. Lyu; Y. Mao; S.???J. Qian; D. Wang; Q. Wang; J. Xiao; M. Lu; Z. You; X. Gao; H. Okawa; Z. Lin; M. Xiao; C. Avila; A. Cabrera; C. Florez; J. Fraga; A. Sarkar; M.???A. Segura Delgado; J. Mejia Guisao; F. Ramirez; J.???D. Ruiz Alvarez; C.???A. Salazar Gonz??lez; D. Giljanovic; N. Godinovic; D. Lelas; I. Puljak; Z. Antunovic; M. Kovac; T. Sculac; V. Brigljevic; D. Ferencek; D. Majumder; M. Roguljic; A. Starodumov; T. Susa; A. Attikis; K. Christoforou; E. Erodotou; A. Ioannou; G. Kole; M. Kolosova; S. Konstantinou; J. Mousa; C. Nicolaou; F. Ptochos; P.???A. Razis; H. Rykaczewski; H. Saka; M. Finger; M. Finger; A. Kveton; E. Ayala; E. Carrera Jarrin; A.???A. Abdelalim; S. Khalil; A. Lotfy; M.???A. Mahmoud; S. Bhowmik; R.???K. Dewanjee; K. Ehataht; M. Kadastik; S. Nandan; C. Nielsen; J. Pata; M. Raidal; L. Tani; C. Veelken; P. Eerola; L. Forthomme; H. Kirschenmann; K. Osterberg; M. Voutilainen; S. Bharthuar; E. Br??cken; F. Garcia; J. Havukainen; M.???S. Kim; R. Kinnunen; T. Lamp??n; K. Lassila-Perini; S. Lehti; T. Lind??n; M. Lotti; L. Martikainen; M. Myllym??ki; J. Ott; H. Siikonen; E. Tuominen; J. Tuominiemi; P. Luukka; H. Petrow; T. Tuuva; C. Amendola; M. Besancon; F. Couderc; M. Dejardin; D. Denegri; J.???L. Faure; F. Ferri; S. Ganjour; A. Givernaud; P. Gras; G. Hamel de Monchenault; P. Jarry; B. Lenzi; E. Locci; J. Malcles; J. Rander; A. Rosowsky; M. ??. Sahin; A. Savoy-Navarro; M. Titov; G.???B. Yu; S. Ahuja; F. Beaudette; M. Bonanomi; A. Buchot Perraguin; P. Busson; A. Cappati; C. Charlot; O. Davignon; B. Diab;
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