Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions

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

doi:10.1016/j.physletb.2012.05.020

Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions

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

23 Citations (Scopus)

Abstract

A search is presented for a narrow resonance decaying to a pair of Z bosons using data corresponding to 1.02fb ^-1 of integrated luminosity collected by the ATLAS experiment from pp collisions at √s=7TeV. Events containing either four charged leptons (ℓℓℓℓ) or two charged leptons and two jets (ℓℓjj) are analyzed and found to be consistent with the Standard Model background expectation. Lower limits on a resonance mass are set using the Randall-Sundrum (RS1) graviton model as a benchmark. Using both ℓℓℓℓ and ℓℓjj events, an RS1 graviton with k/m-pl=0.1 and mass between 325 and 845 GeV is excluded at 95% confidence level. In addition, the ℓℓℓℓ events are used to set a model-independent fiducial cross section limit of σ _fid (pp→X→ZZ)<0.92pb at 95% confidence level for any new sources of ZZ production with m _ZZ greater than 300 GeV.

Original language	English
Journal	Physics Letters B
Volume	712
Issue number	4-5
Pages (from-to)	331-350
ISSN	0370-2693
DOIs	https://doi.org/10.1016/j.physletb.2012.05.020
Publication status	Published - 12 Jun 2012

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10.1016/j.physletb.2012.05.020

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Aad, G., Dam, M., Boelaert, N. M. P., Hansen, J. B., Hansen, P. H., Hansen, J. D., Hansen, J. R., Jørgensen, M. D., Heisterkamp, S. J. F., Mehlhase, S., Klinkby, E. B., Nilsson, B. S., Petersen, T. C., Løvschall-Jensen, A. E., & Xella, S. (2012). Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions. Physics Letters B, 712(4-5), 331-350. https://doi.org/10.1016/j.physletb.2012.05.020

Aad, G, Dam, M, Boelaert, NMP, Hansen, JB , Hansen, PH , Hansen, JD , Hansen, JR, Jørgensen, MD, Heisterkamp, SJF, Mehlhase, S, Klinkby, EB, Nilsson, BS, Petersen, TC, Løvschall-Jensen, AE & Xella, S 2012, 'Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions', Physics Letters B, vol. 712, no. 4-5, pp. 331-350. https://doi.org/10.1016/j.physletb.2012.05.020

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title = "Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions",

abstract = " A search is presented for a narrow resonance decaying to a pair of Z bosons using data corresponding to 1.02fb -1 of integrated luminosity collected by the ATLAS experiment from pp collisions at √s=7TeV. Events containing either four charged leptons (ℓℓℓℓ) or two charged leptons and two jets (ℓℓjj) are analyzed and found to be consistent with the Standard Model background expectation. Lower limits on a resonance mass are set using the Randall-Sundrum (RS1) graviton model as a benchmark. Using both ℓℓℓℓ and ℓℓjj events, an RS1 graviton with k/m-pl=0.1 and mass between 325 and 845 GeV is excluded at 95% confidence level. In addition, the ℓℓℓℓ events are used to set a model-independent fiducial cross section limit of σ fid (pp→X→ZZ)<0.92pb at 95% confidence level for any new sources of ZZ production with m ZZ greater than 300 GeV.",

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

year = "2012",

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doi = "10.1016/j.physletb.2012.05.020",

language = "English",

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T1 - Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions

AU - Aad, G.

AU - Dam, Mogens

AU - Boelaert, Nele Maria Philomena

AU - Hansen, Jørgen Beck

AU - Hansen, Peter Henrik

AU - Hansen, Jørn Dines

AU - Hansen, John Renner

AU - Jørgensen, Morten Dam

AU - Heisterkamp, Simon Johann Franz

AU - Mehlhase, Sascha

AU - Klinkby, Esben Bryndt

AU - Nilsson, Björn Stefan

AU - Petersen, Troels Christian

AU - Løvschall-Jensen, Ask Emil

AU - Xella, Stefania

PY - 2012/6/12

Y1 - 2012/6/12

N2 - A search is presented for a narrow resonance decaying to a pair of Z bosons using data corresponding to 1.02fb -1 of integrated luminosity collected by the ATLAS experiment from pp collisions at √s=7TeV. Events containing either four charged leptons (ℓℓℓℓ) or two charged leptons and two jets (ℓℓjj) are analyzed and found to be consistent with the Standard Model background expectation. Lower limits on a resonance mass are set using the Randall-Sundrum (RS1) graviton model as a benchmark. Using both ℓℓℓℓ and ℓℓjj events, an RS1 graviton with k/m-pl=0.1 and mass between 325 and 845 GeV is excluded at 95% confidence level. In addition, the ℓℓℓℓ events are used to set a model-independent fiducial cross section limit of σ fid (pp→X→ZZ)<0.92pb at 95% confidence level for any new sources of ZZ production with m ZZ greater than 300 GeV.

AB - A search is presented for a narrow resonance decaying to a pair of Z bosons using data corresponding to 1.02fb -1 of integrated luminosity collected by the ATLAS experiment from pp collisions at √s=7TeV. Events containing either four charged leptons (ℓℓℓℓ) or two charged leptons and two jets (ℓℓjj) are analyzed and found to be consistent with the Standard Model background expectation. Lower limits on a resonance mass are set using the Randall-Sundrum (RS1) graviton model as a benchmark. Using both ℓℓℓℓ and ℓℓjj events, an RS1 graviton with k/m-pl=0.1 and mass between 325 and 845 GeV is excluded at 95% confidence level. In addition, the ℓℓℓℓ events are used to set a model-independent fiducial cross section limit of σ fid (pp→X→ZZ)<0.92pb at 95% confidence level for any new sources of ZZ production with m ZZ greater than 300 GeV.

U2 - 10.1016/j.physletb.2012.05.020

DO - 10.1016/j.physletb.2012.05.020

M3 - Journal article

SN - 0370-2693

VL - 712

SP - 331

EP - 350

JO - Physics Letters B

JF - Physics Letters B

IS - 4-5

ER -

Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions

Abstract

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