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Pregled bibliografske jedinice broj: 1010463

Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at √s=13TeV


(CMS) Sirunyan, Albert; ...; Đurić, Senka; Lelas, Damir; Godinović, Nikola; Puljak, Ivica; Šćulac, Toni; Mesić, Benjamin; Šuša, Tatjana; Kovač, Marko et al.
Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at √s=13TeV // European physical journal C : particles and fields, 79 (2019), 2; 90, 29 doi:10.1140/epjc/s10052-019-6556-3 (međunarodna recenzija, članak, znanstveni)


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Naslov
Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at √s=13TeV

Autori
Sirunyan, Albert ; ... ; Đurić, Senka ; Lelas, Damir ; Godinović, Nikola ; Puljak, Ivica ; Šćulac, Toni ; Mesić, Benjamin ; Šuša, Tatjana ; Kovač, Marko ; Ferenček, Dinko ; Antunović, Željko ; Starodumov, Andrey ; Brigljević, Vuko ; Luetić, Jelena ; Kadija, Krešo ; ... ; Woods, Nate

Kolaboracija
CMS

Izvornik
European physical journal C : particles and fields (1434-6044) 79 (2019), 2; 90, 29

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
high energy physics ; experimental particle physics ; LHC ; CMS ; standard model

Sažetak
A search is presented for the single production of vector-like quarks in proton–proton collisions at s√=13TeV. The data, corresponding to an integrated luminosity of 35.9fb−1, were recorded with the CMS experiment at the LHC. The analysis focuses on the vector-like quark decay into a top quark and a W boson, with one muon or electron in the final state. The mass of the vector-like quark candidate is reconstructed from hadronic jets, the lepton, and the missing transverse momentum. Methods for the identification of b quarks and of highly Lorentz boosted hadronically decaying top quarks and W bosons are exploited in this search. No significant deviation from the standard model background expectation is observed. Exclusion limits at 95% confidence level are set on the product of the production cross section and branching fraction as a function of the vector-like quark mass, which range from 0.3 to 0.03pb for vector-like quark masses of 700 to 2000GeV. Mass exclusion limits up to 1660GeV are obtained, depending on the vector-like quark type, coupling, and decay width. These represent the most stringent exclusion limits for the single production of vector-like quarks in this channel.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Split

Citiraj ovu publikaciju

(CMS) Sirunyan, Albert; ...; Đurić, Senka; Lelas, Damir; Godinović, Nikola; Puljak, Ivica; Šćulac, Toni; Mesić, Benjamin; Šuša, Tatjana; Kovač, Marko et al.
Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at √s=13TeV // European physical journal C : particles and fields, 79 (2019), 2; 90, 29 doi:10.1140/epjc/s10052-019-6556-3 (međunarodna recenzija, članak, znanstveni)
(CMS) (CMS) Sirunyan, A., ..., Đurić, S., Lelas, D., Godinović, N., Puljak, I., Šćulac, T., Mesić, B., Šuša, T. & Kovač, M. (2019) Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at √s=13TeV. European physical journal C : particles and fields, 79 (2), 90, 29 doi:10.1140/epjc/s10052-019-6556-3.
@article{article, year = {2019}, pages = {29}, DOI = {10.1140/epjc/s10052-019-6556-3}, chapter = {90}, keywords = {high energy physics, experimental particle physics, LHC, CMS, standard model}, journal = {European physical journal C : particles and fields}, doi = {10.1140/epjc/s10052-019-6556-3}, volume = {79}, number = {2}, issn = {1434-6044}, title = {Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at √s=13TeV}, keyword = {high energy physics, experimental particle physics, LHC, CMS, standard model}, chapternumber = {90} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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