Počet záznamů: 1
Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at √s = 8 TeV with the ATLAS detector
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SYSNO ASEP 0487361 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Probing the W tb vertex structure in t-channel single-top-quark production and decay in pp collisions at √s = 8 TeV with the ATLAS detector Tvůrce(i) Aaboud, M. (MA)
Aad, G. (FR)
Abbott, B. (US)
Chudoba, Jiří (FZU-D) RID, ORCID
Havránek, Miroslav (FZU-D) RID
Hejbal, Jiří (FZU-D) RID, ORCID
Hladík, Ondřej (FZU-D) ORCID
Jakoubek, Tomáš (FZU-D) RID, ORCID
Kepka, Oldřich (FZU-D) RID, ORCID
Kupčo, Alexander (FZU-D) RID, ORCID
Kůs, Vlastimil (FZU-D) RID
Lokajíček, Miloš (FZU-D) RID, ORCID
Lysák, Roman (FZU-D) RID, ORCID
Marčišovský, Michal (FZU-D) RID, ORCID
Mikeštíková, Marcela (FZU-D) RID, ORCID
Němeček, Stanislav (FZU-D) RID, ORCID
Penc, Ondřej (FZU-D) ORCID
Šícho, Petr (FZU-D) RID, ORCID
Staroba, Pavel (FZU-D) RID, ORCID
Svatoš, Michal (FZU-D) RID, ORCID
Taševský, Marek (FZU-D) RID, ORCID
Vrba, Václav (FZU-D) RID, ORCIDCelkový počet autorů 2852 Číslo článku 124 Zdroj.dok. Journal of High Energy Physics. - : Springer - ISSN 1029-8479
Roč. 2017, č. 4 (2017), s. 1-50Poč.str. 50 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova ATLAS ; CERN LHC Coll ; hadronization ; final state ; ((n)jet lepton) ; parton ; experimental results ; 8000 GeV-cms Vědní obor RIV BF - Elementární částice a fyzika vys. energií Obor OECD Particles and field physics Institucionální podpora FZU-D - RVO:68378271 UT WOS 000400278200001 EID SCOPUS 85018280474 DOI 10.1007/JHEP04(2017)124 Anotace To probe the Wtb vertex structure, top-quark and W-boson polarisation observables are measured from t-channel single-top-quark events produced in proton-proton collisions at a centre-of-mass energy of 8 TeV. The dataset corresponds to an integrated luminosity of 20.2 fb(-1), recorded with the ATLAS detector at the LHC. Selected events contain one isolated electron or muon, large missing transverse momentum and exactly two jets, with one of them identified as likely to contain a b-hadron. Stringent selection requirements are applied to discriminate t-channel single-top-quark events from background. The polarisation observables are extracted from asymmetries in angular distributions measured with respect to spin quantisation axes appropriately chosen for the top quark and the W boson. The asymmetry measurements are performed at parton level by correcting the observed angular distributions for detector effects and hadronisation after subtracting the background contributions. The measured top-quark and W-boson polarisation values are in agreement with the Standard Model predictions. Limits on the imaginary part of the anomalous coupling gR are also set from model-independent measurements.
Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2018
Počet záznamů: 1