Measurements of four-lepton production at Z resonance in pp collisions at √s=7 and 8 TeV with ATLAS
Measurements of four-lepton (4ℓ, ℓ=e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the ATLAS detector are presented. For dilepton and four-lepton invariant mass regions mℓ+ℓ−>5 GeV and 80<m4ℓ<100 GeV, the measured cross sections are 76±18(stat)±4(syst)±1.4...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
13 June 2014
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| In: |
Physical review letters
Year: 2014, Jahrgang: 112, Heft: 23 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.112.231806 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.112.231806 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.112.231806 
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| Verfasserangaben: | G. Aad et al. (ATLAS Collaboration); G. Aad, C.F. Anders, V. Andrei, O. Brandt, T. Colombo, Y. Davygora, T.A. Dietzsch, M.Dunford, M. Giulini, P. Hanke, J. Jongmanns, G. Kasieczka, A. Khomich, E.-E. Kluge, M. Kretz, A. Kugel, H. Laier, V.S. Lang, K. Meier, F. Mueller, R. Narayan, s. Poddar, S. Schaetzel, V. Scharf, S. Schmitt, A. Schoening, H.-C. Schultz-Coulon, R. Stamen, M. Wessels und weitere 2869 |
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| 245 | 1 | 0 | |a Measurements of four-lepton production at Z resonance in pp collisions at √s=7 and 8 TeV with ATLAS |c G. Aad et al. (ATLAS Collaboration); G. Aad, C.F. Anders, V. Andrei, O. Brandt, T. Colombo, Y. Davygora, T.A. Dietzsch, M.Dunford, M. Giulini, P. Hanke, J. Jongmanns, G. Kasieczka, A. Khomich, E.-E. Kluge, M. Kretz, A. Kugel, H. Laier, V.S. Lang, K. Meier, F. Mueller, R. Narayan, s. Poddar, S. Schaetzel, V. Scharf, S. Schmitt, A. Schoening, H.-C. Schultz-Coulon, R. Stamen, M. Wessels und weitere 2869 |
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| 246 | 3 | 3 | |a Measurements of four-lepton production at Z resonance in pp collisions at square root s =7 and 8 TeV with ATLAS |
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| 500 | |a Gesehen am 11.02.2021 | ||
| 520 | |a Measurements of four-lepton (4ℓ, ℓ=e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the ATLAS detector are presented. For dilepton and four-lepton invariant mass regions mℓ+ℓ−>5 GeV and 80<m4ℓ<100 GeV, the measured cross sections are 76±18(stat)±4(syst)±1.4(lumi) fb and 107±9(stat)±4(syst)±3.0(lumi) fb at √s=7 and 8 TeV, respectively. By subtracting the nonresonant 4ℓ production contributions and normalizing with Z→μ+μ− events, the branching fraction for the Z boson decay to 4ℓ is determined to be (3.20±0.25(stat)±0.13(syst))×10−6, consistent with the standard model prediction. | ||
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