Measurement of the ZZ production cross section and search for the standard model Higgs boson in the four lepton final state in pp̅ collisions

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PhysRevD.88.032008
Rights statement: © 2013 American Physical Society
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Measurement of the ZZ production cross section and search for the standard model Higgs boson in the four lepton final state in pp̅ collisions. / Bertram, Iain ; Borissov, Guennadi ; Fox, Harald et al.
In: Physical Review D – Particles and Fields, Vol. 88, No. 3, 032008, 15.08.2013.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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@article{646badb3995541dda9fb0dd213681b45,

title = "Measurement of the ZZ production cross section and search for the standard model Higgs boson in the four lepton final state in pp̅ collisions",

abstract = "We present a measurement of Z boson pair production in pp̅ collisions at 1.96 TeV with 9.6 to 9.8 fb-1 of D0 data. We examine the final states eeee, eeμμ, and μμμμ. Based on selected data, the measured cross section in the mass region M(Z/γ*)>30 GeV is σ(pp̅ →Z/γ*Z/γ*)=1.26-0.36+0.44(stat)-0.15+0.17(syst)±0.08(lumi) pb; after correcting for the expected ratio of σ(pp̅ →Z/γ*Z/γ*) to σ(pp̅ →ZZ), we derive a cross section for pp̅ →ZZ production of 1.05-0.30+0.37(stat)-0.12+0.14(syst)±0.06(lumi) pb. This result is combined with a previous result from the ZZ→ℓ+ℓ-νν̅ channel resulting in a combined pp̅ →ZZ cross section measurement of 1.32-0.25+0.29(stat)±0.12(syst)±0.04(lumi) pb. These measurements are consistent with the standard model expectation of 1.43±0.10 pb. We extend this analysis to search for the standard model (SM) Higgs boson between 115 and 200 GeV. At a Higgs boson mass of 125 GeV, we expect to set a limit of 43 times the SM expectation at 95% C.L., and set a limit of 42 times the SM expectation at 95% C.L.",

author = "Iain Bertram and Guennadi Borissov and Harald Fox and Peter Ratoff and Anthony Ross and {D0 Collaboration}, The",

note = "{\textcopyright} 2013 American Physical Society",

year = "2013",

month = aug,

day = "15",

doi = "10.1103/PhysRevD.88.032008",

language = "English",

volume = "88",

journal = "Physical Review D – Particles and Fields",

issn = "1550-2368",

publisher = "American Physical Society",

number = "3",

}

RIS

TY - JOUR

T1 - Measurement of the ZZ production cross section and search for the standard model Higgs boson in the four lepton final state in pp̅ collisions

AU - Bertram, Iain

AU - Borissov, Guennadi

AU - Fox, Harald

AU - Ratoff, Peter

AU - Ross, Anthony

AU - D0 Collaboration, The

PY - 2013/8/15

Y1 - 2013/8/15

N2 - We present a measurement of Z boson pair production in pp̅ collisions at 1.96 TeV with 9.6 to 9.8 fb-1 of D0 data. We examine the final states eeee, eeμμ, and μμμμ. Based on selected data, the measured cross section in the mass region M(Z/γ*)>30 GeV is σ(pp̅ →Z/γ*Z/γ*)=1.26-0.36+0.44(stat)-0.15+0.17(syst)±0.08(lumi) pb; after correcting for the expected ratio of σ(pp̅ →Z/γ*Z/γ*) to σ(pp̅ →ZZ), we derive a cross section for pp̅ →ZZ production of 1.05-0.30+0.37(stat)-0.12+0.14(syst)±0.06(lumi) pb. This result is combined with a previous result from the ZZ→ℓ+ℓ-νν̅ channel resulting in a combined pp̅ →ZZ cross section measurement of 1.32-0.25+0.29(stat)±0.12(syst)±0.04(lumi) pb. These measurements are consistent with the standard model expectation of 1.43±0.10 pb. We extend this analysis to search for the standard model (SM) Higgs boson between 115 and 200 GeV. At a Higgs boson mass of 125 GeV, we expect to set a limit of 43 times the SM expectation at 95% C.L., and set a limit of 42 times the SM expectation at 95% C.L.

AB - We present a measurement of Z boson pair production in pp̅ collisions at 1.96 TeV with 9.6 to 9.8 fb-1 of D0 data. We examine the final states eeee, eeμμ, and μμμμ. Based on selected data, the measured cross section in the mass region M(Z/γ*)>30 GeV is σ(pp̅ →Z/γ*Z/γ*)=1.26-0.36+0.44(stat)-0.15+0.17(syst)±0.08(lumi) pb; after correcting for the expected ratio of σ(pp̅ →Z/γ*Z/γ*) to σ(pp̅ →ZZ), we derive a cross section for pp̅ →ZZ production of 1.05-0.30+0.37(stat)-0.12+0.14(syst)±0.06(lumi) pb. This result is combined with a previous result from the ZZ→ℓ+ℓ-νν̅ channel resulting in a combined pp̅ →ZZ cross section measurement of 1.32-0.25+0.29(stat)±0.12(syst)±0.04(lumi) pb. These measurements are consistent with the standard model expectation of 1.43±0.10 pb. We extend this analysis to search for the standard model (SM) Higgs boson between 115 and 200 GeV. At a Higgs boson mass of 125 GeV, we expect to set a limit of 43 times the SM expectation at 95% C.L., and set a limit of 42 times the SM expectation at 95% C.L.

U2 - 10.1103/PhysRevD.88.032008

DO - 10.1103/PhysRevD.88.032008

M3 - Journal article

VL - 88

JO - Physical Review D – Particles and Fields

JF - Physical Review D – Particles and Fields

SN - 1550-2368

IS - 3

M1 - 032008

ER -

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