Measurement of the charge asymmetry in highly boosted top-quark pair production in root s=8 TeV pp collision data collected by the ATLAS experiment
| dc.WoS.categories | Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields | en_US |
| dc.authorid | 0000-0001-5050-8441 | en_US |
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2020-12-10T06:47:10Z | |
| dc.date.available | 2020-12-10T06:47:10Z | |
| dc.date.issued | 2016-05-10 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | In the pp -> t (t) over bar process the angular distributions of top and anti-top quarks are expected to present a subtle difference, which could be enhanced by processes not included in the Standard Model. This Letter presents a measurement of the charge asymmetry in events where the top-quark pair is produced with a large invariant mass. The analysis is performed on 20.3 fb(-1) of pp collision data at root s=8 TeV collected by the ATLAS experiment at the LHC, using reconstruction techniques specifically designed for the decay topology of highly boosted top quarks. The charge asymmetry in a fiducial region with large invariant mass of the top-quark pair (m(t (t) over bar) > 0.75 TeV) and an absolute rapidity difference of the top and anti-top quark candidates within -2 vertical bar y(t)vertical bar - vertical bar y(<(t) over bar)vertical bar < 2is measured to be 4.2 +/- 3.2%, in agreement with the Standard Model prediction at next-to-leading order. A differential measurement in three (t) over bar mass bins is also presented. (C) 2016 CERN for the benefit of the ATLAS Collaboration. Published by Elsevier B.V. | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1016/j.physletb.2016.02.055 | |
| dc.identifier.issn | 1873-2445 | |
| dc.identifier.issn | 0370-2693 | |
| dc.identifier.scopus | 2-s2.0-85042466567 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/2816 | |
| dc.identifier.uri | https://doi.org/10.1016/j.physletb.2016.02.055 | |
| dc.identifier.wos | WOS:000373569200008 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 100+ | en_US |
| dc.pages | 52-71 | en_US |
| dc.publisher | Elsevier | en_US |
| dc.relation.ispartof | Physics Letters B | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | LHC | en_US |
| dc.title | Measurement of the charge asymmetry in highly boosted top-quark pair production in root s=8 TeV pp collision data collected by the ATLAS experiment | |
| dc.type | Article | |
| dc.volume | 756 | en_US |
