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

G. Aad; B. Abbott; J. Abdallah; S. Abdel Khalek; O. Abdinov; R. Aben; B. Abi; Mogens Dam; Jørn Dines Hansen; Jørgen Beck Hansen; Stefania Xella; Peter Henrik Hansen; Troels Christian Petersen; Lotte Ansgaard Thomsen; Sascha Mehlhase; Morten Dam Jørgensen; Almut Maria Pingel; Ask Emil Løvschall-Jensen; Alejandro Alonso Diaz; James William Monk; Gorm Aske Gram Krohn Galster; Lars Egholm Pedersen; Graig Wiglesworth

doi:10.1007/JHEP04(2014)172

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

G. Aad, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, Mogens Dam, Jørn Dines Hansen, Jørgen Beck Hansen, Stefania Xella, Peter Henrik Hansen, Troels Christian Petersen, Lotte Ansgaard Thomsen, Sascha Mehlhase, Morten Dam Jørgensen, Almut Maria Pingel, Ask Emil Løvschall-Jensen, Alejandro Alonso Diaz, James William MonkGorm Aske Gram Krohn Galster, Lars Egholm Pedersen, Graig Wiglesworth

Experimental Particle Physics

42 Citations (Scopus)

Abstract

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.

Original language	English
Article number	1404
Journal	Journal of High Energy Physics (Online)
Volume	2014
Issue number	172
ISSN	1126-6708
DOIs	https://doi.org/10.1007/JHEP04(2014)172
Publication status	Published - Apr 2014

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10.1007/JHEP04(2014)172

http://dx.doi.org/10.1007/JHEP04(2014)172

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Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E., Alonso Diaz, A., ... Wiglesworth, G. (2014). 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. Journal of High Energy Physics (Online), 2014(172), [1404]. https://doi.org/10.1007/JHEP04(2014)172

Aad, G, Abbott, B, Abdallah, J, Abdel Khalek, S, Abdinov, O, Aben, R, Abi, B, Dam, M , Hansen, JD , Hansen, JB , Xella, S , Hansen, PH , Petersen, TC, Thomsen, LA, Mehlhase, S, Jørgensen, MD, Pingel, AM, Løvschall-Jensen, AE, Alonso Diaz, A, Monk, JW, Galster, GAGK, Pedersen, LE & Wiglesworth, G 2014, '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', Journal of High Energy Physics (Online), vol. 2014, no. 172, 1404. https://doi.org/10.1007/JHEP04(2014)172

@article{bfdaa3cce30f4039ad2b16e1b81c9ef1,

title = "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",

abstract = "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.",

author = "G. Aad and B. Abbott and J. Abdallah and {Abdel Khalek}, S. and O. Abdinov and R. Aben and B. Abi and Mogens Dam and Hansen, {J{\o}rn Dines} and Hansen, {J{\o}rgen Beck} and Stefania Xella and Hansen, {Peter Henrik} and Petersen, {Troels Christian} and Thomsen, {Lotte Ansgaard} and Sascha Mehlhase and J{\o}rgensen, {Morten Dam} and Pingel, {Almut Maria} and L{\o}vschall-Jensen, {Ask Emil} and {Alonso Diaz}, Alejandro and Monk, {James William} and Galster, {Gorm Aske Gram Krohn} and Pedersen, {Lars Egholm} and Graig Wiglesworth",

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T1 - 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

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdel Khalek, S.

AU - Abdinov, O.

AU - Aben, R.

AU - Abi, B.

AU - Dam, Mogens

AU - Hansen, Jørn Dines

AU - Hansen, Jørgen Beck

AU - Xella, Stefania

AU - Hansen, Peter Henrik

AU - Petersen, Troels Christian

AU - Thomsen, Lotte Ansgaard

AU - Mehlhase, Sascha

AU - Jørgensen, Morten Dam

AU - Pingel, Almut Maria

AU - Løvschall-Jensen, Ask Emil

AU - Alonso Diaz, Alejandro

AU - Monk, James William

AU - Galster, Gorm Aske Gram Krohn

AU - Pedersen, Lars Egholm

AU - Wiglesworth, Graig

PY - 2014/4

Y1 - 2014/4

N2 - 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.

AB - 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.

U2 - 10.1007/JHEP04(2014)172

DO - 10.1007/JHEP04(2014)172

M3 - Journal article

SN - 1126-6708

VL - 2014

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

IS - 172

M1 - 1404

ER -

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

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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