Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector

A measurement of the t-channel single-top-quark and single-top-antiquark production cross-sections in the lepton+jets channel is presented, using 3.2 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV, recorded with the ATLAS detector at the LHC in 2015. Events are selected by...

Descripción completa

Detalles Bibliográficos
Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Física
Ciencias Exactas
Hadron-Hadron scattering (experiments)
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87555
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87555
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
Hadron-Hadron scattering (experiments)
spellingShingle Física
Ciencias Exactas
Hadron-Hadron scattering (experiments)
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector
topic_facet Física
Ciencias Exactas
Hadron-Hadron scattering (experiments)
description A measurement of the t-channel single-top-quark and single-top-antiquark production cross-sections in the lepton+jets channel is presented, using 3.2 fb−1 of proton-proton collision data at a centre-of-mass energy of 13 TeV, recorded with the ATLAS detector at the LHC in 2015. Events are selected by requiring one charged lepton (electron or muon), missing transverse momentum, and two jets with high transverse momentum, exactly one of which is required to be b-tagged. Using a binned maximum-likelihood fit to the discriminant distribution of a neural network, the cross-sections are determined to be σ(tq) = 156 ± 5 (stat.) ± 27 (syst.) ± 3 (lumi.) pb for single top-quark production and σ(t¯ q) = 91 ± 4 (stat.) ± 18 (syst.) ± 2 (lumi.) pb for single top-antiquark production, assuming a top-quark mass of 172.5 GeV. The cross-section ratio is measured to be Rt=σ(tq)/σ(t¯q)=1.72±0.09 (stat.) ± 0.18 (syst.). All results are in agreement with Standard Model predictions.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
author_sort Alconada Verzini, María Josefina
title Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector
title_short Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector
title_full Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector
title_fullStr Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector
title_full_unstemmed Measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 TeV with the ATLAS detector
title_sort measurement of the inclusive cross-sections of single top-quark and top-antiquark t-channel production in pp collisions at √s=13 tev with the atlas detector
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87555
work_keys_str_mv AT alconadaverzinimariajosefina measurementoftheinclusivecrosssectionsofsingletopquarkandtopantiquarktchannelproductioninppcollisionsats13tevwiththeatlasdetector
AT alonsofrancisco measurementoftheinclusivecrosssectionsofsingletopquarkandtopantiquarktchannelproductioninppcollisionsats13tevwiththeatlasdetector
AT arduhfranciscoanuar measurementoftheinclusivecrosssectionsofsingletopquarkandtopantiquarktchannelproductioninppcollisionsats13tevwiththeatlasdetector
AT dovamariateresa measurementoftheinclusivecrosssectionsofsingletopquarkandtopantiquarktchannelproductioninppcollisionsats13tevwiththeatlasdetector
AT hoyajoaquin measurementoftheinclusivecrosssectionsofsingletopquarkandtopantiquarktchannelproductioninppcollisionsats13tevwiththeatlasdetector
AT monticellifernandogabriel measurementoftheinclusivecrosssectionsofsingletopquarkandtopantiquarktchannelproductioninppcollisionsats13tevwiththeatlasdetector
AT wahlberghernanpablo measurementoftheinclusivecrosssectionsofsingletopquarkandtopantiquarktchannelproductioninppcollisionsats13tevwiththeatlasdetector
bdutipo_str Repositorios
_version_ 1764820490191372288

Ejemplares similares