Measurement of W(+/-)Z production in proton-proton collisions at root s=7 TeV with the ATLAS detector

G. Aad; T. Abajyan; Mogens Dam; Jørgen Beck Hansen; Peter Henrik Hansen; John Renner Hansen; Jørn Dines Hansen; Simon Johann Franz Heisterkamp; Morten Dam Jørgensen; Nele Maria Philomena Boelaert; Esben Bryndt Klinkby; Sascha Mehlhase; Björn Stefan Nilsson; Troels Christian Petersen; Ask Emil Løvschall-Jensen; Stefania Xella

doi:10.1140/epjc/s10052-012-2173-0

Measurement of W(+/-)Z production in proton-proton collisions at root s=7 TeV with the ATLAS detector

G. Aad, T. Abajyan, Mogens Dam, Jørgen Beck Hansen, Peter Henrik Hansen, John Renner Hansen, Jørn Dines Hansen, Simon Johann Franz Heisterkamp, Morten Dam Jørgensen, Nele Maria Philomena Boelaert, Esben Bryndt Klinkby, Sascha Mehlhase, Björn Stefan Nilsson, Troels Christian Petersen, Ask Emil Løvschall-Jensen, Stefania Xella

Eksperimentel subatomar fysik

75 Citationer (Scopus)

Abstract

A study of W ^± Z production in proton-proton collisions at √s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb⁻¹ collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be be σ^tot _WZ = 19.0^+1.4 _−1.3 (stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6^+1.1 _−1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.

Originalsprog	Engelsk
Tidsskrift	European Physical Journal C
Vol/bind	72
Udgave nummer	10
Sider (fra-til)	2173
ISSN	1434-6044
DOI	https://doi.org/10.1140/epjc/s10052-012-2173-0
Status	Udgivet - 6 okt. 2012

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10.1140/epjc/s10052-012-2173-0

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Aad, G., Abajyan, T., Dam, M., Hansen, J. B., Hansen, P. H., Hansen, J. R., Hansen, J. D., Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Petersen, T. C., Løvschall-Jensen, A. E., & Xella, S. (2012). Measurement of W(+/-)Z production in proton-proton collisions at root s=7 TeV with the ATLAS detector. European Physical Journal C, 72(10), 2173. https://doi.org/10.1140/epjc/s10052-012-2173-0

Aad, G, Abajyan, T, Dam, M , Hansen, JB , Hansen, PH , Hansen, JR , Hansen, JD, Heisterkamp, SJF, Jørgensen, MD, Boelaert, NMP, Klinkby, EB, Mehlhase, S, Nilsson, BS, Petersen, TC, Løvschall-Jensen, AE & Xella, S 2012, 'Measurement of W(+/-)Z production in proton-proton collisions at root s=7 TeV with the ATLAS detector', European Physical Journal C, bind 72, nr. 10, s. 2173. https://doi.org/10.1140/epjc/s10052-012-2173-0

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title = "Measurement of W(+/-)Z production in proton-proton collisions at root s=7 TeV with the ATLAS detector",

abstract = "A study of W ± Z production in proton-proton collisions at √s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be be σtot WZ = 19.0+1.4 −1.3 (stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6+1.1 −1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.",

author = "G. Aad and T. Abajyan and Mogens Dam and Hansen, {J{\o}rgen Beck} and Hansen, {Peter Henrik} and Hansen, {John Renner} and Hansen, {J{\o}rn Dines} and Heisterkamp, {Simon Johann Franz} and J{\o}rgensen, {Morten Dam} and Boelaert, {Nele Maria Philomena} and Klinkby, {Esben Bryndt} and Sascha Mehlhase and Nilsson, {Bj{\"o}rn Stefan} and Petersen, {Troels Christian} and L{\o}vschall-Jensen, {Ask Emil} and Stefania Xella",

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T1 - Measurement of W(+/-)Z production in proton-proton collisions at root s=7 TeV with the ATLAS detector

AU - Aad, G.

AU - Abajyan, T.

AU - Dam, Mogens

AU - Hansen, Jørgen Beck

AU - Hansen, Peter Henrik

AU - Hansen, John Renner

AU - Hansen, Jørn Dines

AU - Heisterkamp, Simon Johann Franz

AU - Jørgensen, Morten Dam

AU - Boelaert, Nele Maria Philomena

AU - Klinkby, Esben Bryndt

AU - Mehlhase, Sascha

AU - Nilsson, Björn Stefan

AU - Petersen, Troels Christian

AU - Løvschall-Jensen, Ask Emil

AU - Xella, Stefania

PY - 2012/10/6

Y1 - 2012/10/6

N2 - A study of W ± Z production in proton-proton collisions at √s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be be σtot WZ = 19.0+1.4 −1.3 (stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6+1.1 −1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.

AB - A study of W ± Z production in proton-proton collisions at √s = 7 TeV is presented using data corresponding to an integrated luminosity of 4.6 fb−1 collected with the ATLAS detector at the Large Hadron Collider in 2011. In total, 317 candidates, with a background expectation of 68 ± 10 events, are observed in double-leptonic decay final states with electrons, muons and missing transverse momentum. The total cross-section is determined to be be σtot WZ = 19.0+1.4 −1.3 (stat.) ± 0.9(syst.) ± 0.4(lumi.) pb, consistent with the Standard Model expectation of 17.6+1.1 −1.0 pb. Limits on anomalous triple gauge boson couplings are derived using the transverse momentum spectrum of Z bosons in the selected events. The cross-section is also presented as a function of Z boson transverse momentum and diboson invariant mass.

U2 - 10.1140/epjc/s10052-012-2173-0

DO - 10.1140/epjc/s10052-012-2173-0

M3 - Journal article

SN - 1434-6044

VL - 72

SP - 2173

JO - European Physical Journal C

JF - European Physical Journal C

IS - 10

ER -

Measurement of W(+/-)Z production in proton-proton collisions at root s=7 TeV with the ATLAS detector

Abstract

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