Measurement of the prompt J/ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector

The production of two prompt J/ψ mesons, each with transverse momenta p<sub>T</sub> > 8.5 GeV and rapidity |y| < 2.1, is studied using a sample of proton-proton collisions at √s=8 TeV, corresponding to an integrated luminosity of 11.4 fb<sup>−1</sup> collected in 2012...

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Autores principales: Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernán Pablo, The ATLAS Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
Física
quantum chromodynamics
jet
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/81872
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-81872
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
quantum chromodynamics
jet
spellingShingle Ciencias Exactas
Física
quantum chromodynamics
jet
Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
Measurement of the prompt J/ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
topic_facet Ciencias Exactas
Física
quantum chromodynamics
jet
description The production of two prompt J/ψ mesons, each with transverse momenta p<sub>T</sub> > 8.5 GeV and rapidity |y| < 2.1, is studied using a sample of proton-proton collisions at √s=8 TeV, corresponding to an integrated luminosity of 11.4 fb<sup>−1</sup> collected in 2012 with the ATLAS detector at the LHC. The differential cross-section, assuming unpolarised J/ψ production, is measured as a function of the transverse momentum of the lower-p<sub>T</sub> J/ψ meson, di-J/ψ p<sub>T</sub> and mass, the difference in rapidity between the two J/ψ mesons, and the azimuthal angle between the two J/ψ mesons. The fraction of prompt pair events due to double parton scattering is determined by studying kinematic correlations between the two J/ψ mesons. The total and double parton scattering cross-sections are compared with predictions. The effective cross-section of double parton scattering is measured to be σ<sub>eff</sub> = 6.3 ± 1.6 (stat) ± 1.0 (syst) mb.
format Articulo
Articulo
author Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_facet Alconada Verzini, María Josefina
Alonso, Francisco
Arduh, Francisco Anuar
Hoya, Joaquín
Monticelli, Fernando Gabriel
Wahlberg, Hernán Pablo
The ATLAS Collaboration
author_sort Alconada Verzini, María Josefina
title Measurement of the prompt J/ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
title_short Measurement of the prompt J/ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
title_full Measurement of the prompt J/ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
title_fullStr Measurement of the prompt J/ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
title_full_unstemmed Measurement of the prompt J/ψ pair production cross-section in pp collisions at √s = 8 TeV with the ATLAS detector
title_sort measurement of the prompt j/ψ pair production cross-section in pp collisions at √s = 8 tev with the atlas detector
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/81872
work_keys_str_mv AT alconadaverzinimariajosefina measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector
AT alonsofrancisco measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector
AT arduhfranciscoanuar measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector
AT hoyajoaquin measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector
AT monticellifernandogabriel measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector
AT wahlberghernanpablo measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector
AT theatlascollaboration measurementofthepromptjpspairproductioncrosssectioninppcollisionsats8tevwiththeatlasdetector
bdutipo_str Repositorios
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