Measurement of the c-jet mistagging efficiency in tt¯ events using pp collision data at ?s=13 TeV collected with the ATLAS detector
| dc.contributor.author | Çetin, Serkant Ali | |
| dc.date.accessioned | 2022-11-11T08:59:25Z | |
| dc.date.available | 2022-11-11T08:59:25Z | |
| dc.date.issued | 2022-01 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümü | en_US |
| dc.description.abstract | Abstract: A technique is presented to measure the efficiency with which c-jets are mistagged as b-jets (mistagging efficiency) using tt¯ events, where one of the W bosons decays into an electron or muon and a neutrino and the other decays into a quark–antiquark pair. The measurement utilises the relatively large and known W? cs branching ratio, which allows a measurement to be made in an inclusive c-jet sample. The data sample used was collected by the ATLAS detector at s=13 TeV and corresponds to an integrated luminosity of 139 fb- 1. Events are reconstructed using a kinematic likelihood technique which selects the mapping between jets and tt¯ decay products that yields the highest likelihood value. The distribution of the b-tagging discriminant for jets from the hadronic W decays in data is compared with that in simulation to extract the mistagging efficiency as a function of jet transverse momentum. The total uncertainties are in the range 3–17%. The measurements generally agree with those in simulation but there are some differences in the region corresponding to the most stringent b-jet tagging requirement. © 2022, The Author(s). | en_US |
| dc.fullTextLevel | Full Text | en_US |
| dc.identifier.doi | 10.1140/epjc/s10052-021-09843-w | en_US |
| dc.identifier.issn | 1434-6044 | |
| dc.identifier.scopus | 2-s2.0-85124839192 | en_US |
| dc.identifier.uri | https://hdl.handle.net/11411/4665 | |
| dc.identifier.uri | https://doi.org/10.1140/epjc/s10052-021-09843-w | |
| dc.identifier.wos | WOS:000750507100004 | en_US |
| dc.identifier.wosquality | Q1 | en_US |
| dc.indekslendigikaynak | Web of Science | en_US |
| dc.indekslendigikaynak | Scopus | en_US |
| dc.issue | 1 | en_US |
| dc.language.iso | en | en_US |
| dc.national | International | en_US |
| dc.numberofauthors | 100+ | en_US |
| dc.publisher | Springer Science and Business Media Deutschland GmbH | en_US |
| dc.relation.ispartof | 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.title | Measurement of the c-jet mistagging efficiency in tt¯ events using pp collision data at ?s=13 TeV collected with the ATLAS detector | en_US |
| dc.type | Article | en_US |
| dc.volume | 82 | en_US |
