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Pregled bibliografske jedinice broj: 1010528

Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at root s=13 TeV


(CMS Collaboration) Sirunyan, Albert; ...; Đurić, Senka; Lelas, Damir; Godinović, Nikola; Puljak, Ivica; Šćulac, Toni; Mesić, Benjamin; Šuša, Tatjana; Kovač, Marko et al.
Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at root s=13 TeV // The Journal of high energy physics, 08 (2018), 011, 50 doi:10.1007/JHEP08(2018)011 (međunarodna recenzija, članak, znanstveni)


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Naslov
Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at root s=13 TeV

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 Collaboration

Izvornik
The Journal of high energy physics (1126-6708) 08 (2018); 011, 50

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

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

Sažetak
A measurement is performed of the cross section of top quark pair production in association with a W or Z boson using proton-proton collisions at a center-of-mass energy of 13TeV at the LHC. The data sample corresponds to an integrated luminosity of 35.9 fb(-1), collected by the CMS experiment in 2016. The measurement is performed in the same-sign dilepton, three- and four-lepton final states. The production cross sections are measured to be sigma(t (t) over barW) = 0.77(-0.11)(+0.12)(stat)(-0.12) (+0.13) pb and sigma(t (t) over barZ) = 0.99(-0.08)(+0.09) (stat)(-0.10)(+0.12) (syst) pb. The expected (observed) signal signi fi cance for the sigma(t (t) over barW production in same-sign dilepton channel is found to be 4.5 (5.3) standard deviations, while for the t (t) over barZ production in three- and four- lepton channels both the expected and the observed signi fi cances are found to be in excess of 5 standard deviations. The results are in agreement with the standard model predictions and are used to constrain the Wilson coe ffi cients for eight dimension-six operators describing new interactions that would modify t (t) over barW and t (t) over barZ production.

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 Collaboration) Sirunyan, Albert; ...; Đurić, Senka; Lelas, Damir; Godinović, Nikola; Puljak, Ivica; Šćulac, Toni; Mesić, Benjamin; Šuša, Tatjana; Kovač, Marko et al.
Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at root s=13 TeV // The Journal of high energy physics, 08 (2018), 011, 50 doi:10.1007/JHEP08(2018)011 (međunarodna recenzija, članak, znanstveni)
(CMS Collaboration) (CMS Collaboration) Sirunyan, A., ..., Đurić, S., Lelas, D., Godinović, N., Puljak, I., Šćulac, T., Mesić, B., Šuša, T. & Kovač, M. (2018) Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at root s=13 TeV. The Journal of high energy physics, 08, 011, 50 doi:10.1007/JHEP08(2018)011.
@article{article, year = {2018}, pages = {50}, DOI = {10.1007/JHEP08(2018)011}, chapter = {011}, keywords = {high energy physics, experimental particle physics, LHC, CMS, standard model}, journal = {The Journal of high energy physics}, doi = {10.1007/JHEP08(2018)011}, volume = {08}, issn = {1126-6708}, title = {Measurement of the cross section for top quark pair production in association with a W or Z boson in proton-proton collisions at root s=13 TeV}, keyword = {high energy physics, experimental particle physics, LHC, CMS, standard model}, chapternumber = {011} }

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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