Measurement of the inclusive and fiducial tt ¯ production cross-sections in the lepton+jets channel in pp collisions at ?s = 8 TeV with the ATLAS detector
| dc.authorid | 0000-0001-5050-8441 | en_US |
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2021-04-07T08:48:48Z | |
| dc.date.available | 2021-04-07T08:48:48Z | |
| dc.date.issued | 2018-06-12 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | The inclusive and fiducial tt¯ production cross-sections are measured in the lepton+jets channel using 20.2fb?1 of proton–proton collision data at a centre-of-mass energy of 8 TeV recorded with the ATLAS detector at the LHC. Major systematic uncertainties due to the modelling of the jet energy scale and b-tagging efficiency are constrained by separating selected events into three disjoint regions. In order to reduce systematic uncertainties in the most important background, the W+\,jets process is modelled using Z+ jets events in a data-driven approach. The inclusive tt¯ cross-section is measured with a precision of 5.7% to be ?inc(tt¯)=248.3±0.7(stat.)±13.4(syst.)±4.7(lumi.)pb, assuming a top-quark mass of 172.5 GeV. The result is in agreement with the Standard Model prediction. The cross-section is also measured in a phase space close to that of the selected data. The fiducial cross-section is ?fid(tt¯)=48.8±0.1(stat.)±2.0(syst.)±0.9(lumi.)pb with a precision of 4.5%. | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1140/epjc/s10052-018-5904-z | |
| dc.identifier.pmid | 30956553 | en_US |
| dc.identifier.scopus | 2-s2.0-85048534318 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/3490 | |
| dc.identifier.uri | https://doi.org/10.1140/epjc/s10052-018-5904-z | |
| dc.identifier.wos | WOS:000435153700003 | en_US |
| dc.identifier.wosquality | N/A | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.indekslendigikaynak | PubMed | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 100+ | en_US |
| dc.publisher | Springer | en_US |
| dc.relation.ispartof | The European Physical Journal C | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.snmz | 20240718_Mükerrer | |
| dc.title | Measurement of the inclusive and fiducial tt ¯ production cross-sections in the lepton+jets channel in pp collisions at ?s = 8 TeV with the ATLAS detector | |
| dc.type | Article |
