Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s = 8 TeV

This paper presents a measurement of the triple-differential cross section for the Drell-Yan process Z/γ* → ℓ<sup>+</sup>ℓ<sup>-</sup> where ℓ is an electron or a muon. The measurement is performed for invariant masses of the lepton pairs, m<sub>ℓℓ</sub>, between...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, María Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
Física
Hadron-Hadron scattering (experiments)
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/87207
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-87207
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
Hadron-Hadron scattering (experiments)
spellingShingle Ciencias Exactas
Física
Hadron-Hadron scattering (experiments)
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s = 8 TeV
topic_facet Ciencias Exactas
Física
Hadron-Hadron scattering (experiments)
description This paper presents a measurement of the triple-differential cross section for the Drell-Yan process Z/γ* → ℓ<sup>+</sup>ℓ<sup>-</sup> where ℓ is an electron or a muon. The measurement is performed for invariant masses of the lepton pairs, m<sub>ℓℓ</sub>, between 46 and 200 GeV using a sample of 20.2 fb<sup>-1</sup> of pp collisions data at a centre-of-mass energy of √s = 8 TeV collected by the ATLAS detector at the LHC in 2012. The data are presented in bins of invariant mass, absolute dilepton rapidity, |y<sub>ℓℓ</sub>|, and the angular variable cos θ* between the outgoing lepton and the incoming quark in the Collins-Soper frame. The measurements are performed in the range |y<sub>ℓℓ</sub>| < 2.4 in the muon channel, and extended to |y<sub>ℓℓ</sub>| < 3.6 in the electron channel. The cross sections are used to determine the Z boson forward-backward asymmetry as a function of |y<sub>ℓℓ</sub>| and m<sub>ℓℓ</sub>. The measurements achieve high-precision, below the percent level in the pole region, excluding the uncertainty in the integrated luminosity, and are in agreement with predictions. These precision data are sensitive to the parton distribution functions and the effective weak mixing angle.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Dova, María Teresa
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s = 8 TeV
title_short Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s = 8 TeV
title_full Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s = 8 TeV
title_fullStr Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s = 8 TeV
title_full_unstemmed Measurement of the Drell-Yan triple-differential cross section in pp collisions at √s = 8 TeV
title_sort measurement of the drell-yan triple-differential cross section in pp collisions at √s = 8 tev
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/87207
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