Measurement of the production cross section of prompt J/ψ mesons in association with a W± boson in pp collisions at √s = 7 TeV with the ATLAS detector

The process pp → W±J/ψ provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons. Using the 2011 ATLAS dataset of 4.5 fb−1 of √s = 7 TeV pp c...

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Autores principales:	Alconada Verzini, María Josefina, Alonso, Francisco, Anduaga, Xabier Sebastián, Dova, María Teresa, Monticelli, Fernando Gabriel, Tripiana, Martín F., The ATLAS Collaboration
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2014
Materias:	Ciencias Exactas Física la̵rge hadron collider hadron-hadron scattering Protones
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/81225
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-81225
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 la̵rge hadron collider hadron-hadron scattering Protones
spellingShingle	Ciencias Exactas Física la̵rge hadron collider hadron-hadron scattering Protones Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration Measurement of the production cross section of prompt J/ψ mesons in association with a W<sup>±</sup> boson in pp collisions at √s = 7 TeV with the ATLAS detector
topic_facet	Ciencias Exactas Física la̵rge hadron collider hadron-hadron scattering Protones
description	The process pp → W<sup>±</sup>J/ψ provides a powerful probe of the production mechanism of charmonium in hadronic collisions, and is also sensitive to multiple parton interactions in the colliding protons. Using the 2011 ATLAS dataset of 4.5 fb<sup>−1</sup> of √s = 7 TeV pp collisions at the LHC, the first observation is made of the production of W<sup>±</sup> + prompt J/ψ events in hadronic collisions, using W<sup>±</sup> → μνμ and J/ψ → μ+μ−. A yield of 27.4<sup>+7.5</sup><sub>−6.5</sub>W<sup>±</sup> + prompt J/ψ events is observed, with a statistical significance of 5.1σ. The production rate as a ratio to the inclusive W<sup>±</sup> boson production rate is measured, and the double parton scattering contribution to the cross section is estimated.
format	Articulo Articulo
author	Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration
author_facet	Alconada Verzini, María Josefina Alonso, Francisco Anduaga, Xabier Sebastián Dova, María Teresa Monticelli, Fernando Gabriel Tripiana, Martín F. The ATLAS Collaboration
author_sort	Alconada Verzini, María Josefina
title	Measurement of the production cross section of prompt J/ψ mesons in association with a W<sup>±</sup> boson in pp collisions at √s = 7 TeV with the ATLAS detector
title_short	Measurement of the production cross section of prompt J/ψ mesons in association with a W<sup>±</sup> boson in pp collisions at √s = 7 TeV with the ATLAS detector
title_full	Measurement of the production cross section of prompt J/ψ mesons in association with a W<sup>±</sup> boson in pp collisions at √s = 7 TeV with the ATLAS detector
title_fullStr	Measurement of the production cross section of prompt J/ψ mesons in association with a W<sup>±</sup> boson in pp collisions at √s = 7 TeV with the ATLAS detector
title_full_unstemmed	Measurement of the production cross section of prompt J/ψ mesons in association with a W<sup>±</sup> boson in pp collisions at √s = 7 TeV with the ATLAS detector
title_sort	measurement of the production cross section of prompt j/ψ mesons in association with a w<sup>±</sup> boson in pp collisions at √s = 7 tev with the atlas detector
publishDate	2014
url	http://sedici.unlp.edu.ar/handle/10915/81225
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Measurement of the production cross section of prompt J/ψ mesons in association with a W<sup>±</sup> boson in pp collisions at √s = 7 TeV with the ATLAS detector

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