Measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 TeV ATLAS data

The top quark mass is measured in the t¯t → dilepton channel (lepton = e, μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s = 8TeV and correspond to an integrated luminosity of about 20.2 fb<sup>-1</sup>. Exploiti...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ciencias Exactas
Física
top quark
leptons
proton-proton collisions
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/80430
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-80430
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Física
top quark
leptons
proton-proton collisions
spellingShingle Ciencias Exactas
Física
top quark
leptons
proton-proton collisions
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 TeV ATLAS data
topic_facet Ciencias Exactas
Física
top quark
leptons
proton-proton collisions
description The top quark mass is measured in the t¯t → dilepton channel (lepton = e, μ) using ATLAS data recorded in the year 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s = 8TeV and correspond to an integrated luminosity of about 20.2 fb<sup>-1</sup>. Exploiting the template method, and using the distribution of invariant masses of lepton–b-jet pairs, the top quark mass is measured to be m<sub>top</sub> = 172.99 ±0.41 (stat) ±0.74 (syst) GeV, with a total uncertainty of 0.84 GeV. Finally, a combination with previous ATLAS m<sub>top</sub> measurements from s = 7 TeV data in the t¯t → dilepton and t¯t → lepton + jets channels results in m<sub>top</sub> = 172.84 ± 0.34 (stat) ±0.61 (syst) GeV, with a total uncertainty of 0.70 GeV.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 TeV ATLAS data
title_short Measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 TeV ATLAS data
title_full Measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 TeV ATLAS data
title_fullStr Measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 TeV ATLAS data
title_full_unstemmed Measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 TeV ATLAS data
title_sort measurement of the top quark mass in the t¯t → dilepton channel from √s = 8 tev atlas data
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/80430
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