Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root 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 p s = 7TeV pp collisions at the LHC, the first observation is...

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Main Authors: Aad, G, Abajyan, T, Abbott, B, Abdallah, J, Khalek, SA, Abdinov, O, Aben, R, Abi, B, Abolins, M, AbouZeid, O, Abramowicz, H, Abreu, H, Abulaiti, Y, Acharya, B, Adamczyk, L, Adams, D, Addy, T, Adelman, J, Adomeit, S, Adye, T, Aefsky, S, Agatonovic-Jovin, T, Aguilar-Saavedra, J, Agustoni, M, Ahlen, S
Format: Journal article
Published: 2014
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author Aad, G
Abajyan, T
Abbott, B
Abdallah, J
Khalek, SA
Abdinov, O
Aben, R
Abi, B
Abolins, M
AbouZeid, O
Abramowicz, H
Abreu, H
Abulaiti, Y
Acharya, B
Adamczyk, L
Adams, D
Addy, T
Adelman, J
Adomeit, S
Adye, T
Aefsky, S
Agatonovic-Jovin, T
Aguilar-Saavedra, J
Agustoni, M
Ahlen, S
author_facet Aad, G
Abajyan, T
Abbott, B
Abdallah, J
Khalek, SA
Abdinov, O
Aben, R
Abi, B
Abolins, M
AbouZeid, O
Abramowicz, H
Abreu, H
Abulaiti, Y
Acharya, B
Adamczyk, L
Adams, D
Addy, T
Adelman, J
Adomeit, S
Adye, T
Aefsky, S
Agatonovic-Jovin, T
Aguilar-Saavedra, J
Agustoni, M
Ahlen, S
author_sort Aad, G
collection OXFORD
description 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 p s = 7TeV pp collisions at the LHC, the first observation is made of the production of W± + prompt J/ events in hadronic collisions, using W± → μ and J/ψ → μ+μ-. A yield of 27.4±7.5 -6.5 W± + prompt J/ψ events is observed, with a statistical significance of 5.1. The production rate as a ratio to the inclusive W± boson production rate is measured, and the double parton scattering contribution to the cross section is estimated. Copyright CERN, for the benefit of the ATLAS Collaboration.
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spelling oxford-uuid:e91bd368-8bdb-4f6e-aefd-f55bff9143ed2022-03-27T10:51:56ZMeasurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detectorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e91bd368-8bdb-4f6e-aefd-f55bff9143edSymplectic Elements at Oxford2014Aad, GAbajyan, TAbbott, BAbdallah, JKhalek, SAAbdinov, OAben, RAbi, BAbolins, MAbouZeid, OAbramowicz, HAbreu, HAbulaiti, YAcharya, BAdamczyk, LAdams, DAddy, TAdelman, JAdomeit, SAdye, TAefsky, SAgatonovic-Jovin, TAguilar-Saavedra, JAgustoni, MAhlen, SThe 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 p s = 7TeV pp collisions at the LHC, the first observation is made of the production of W± + prompt J/ events in hadronic collisions, using W± → μ and J/ψ → μ+μ-. A yield of 27.4±7.5 -6.5 W± + prompt J/ψ events is observed, with a statistical significance of 5.1. The production rate as a ratio to the inclusive W± boson production rate is measured, and the double parton scattering contribution to the cross section is estimated. Copyright CERN, for the benefit of the ATLAS Collaboration.
spellingShingle Aad, G
Abajyan, T
Abbott, B
Abdallah, J
Khalek, SA
Abdinov, O
Aben, R
Abi, B
Abolins, M
AbouZeid, O
Abramowicz, H
Abreu, H
Abulaiti, Y
Acharya, B
Adamczyk, L
Adams, D
Addy, T
Adelman, J
Adomeit, S
Adye, T
Aefsky, S
Agatonovic-Jovin, T
Aguilar-Saavedra, J
Agustoni, M
Ahlen, S
Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
title Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
title_full Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
title_fullStr Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
title_full_unstemmed Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
title_short Measurement of the production cross section of prompt j/psi mesons in association with a W (+/-) boson in pp collisions root s=7 TeV with the ATLAS detector
title_sort measurement of the production cross section of prompt j psi mesons in association with a w boson in pp collisions root s 7 tev with the atlas detector
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