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Z γ production and limits on anomalous Z Z γ and Z γ γ couplings in p<span style='text-decoration: overline'></span>p collisions at √<span style='text-decoration: overline'>s</span> = 1.96- TeV}.

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@article{1b3106492c024e2abc346f5623582872,
title = "Z γ production and limits on anomalous Z Z γ and Z γ γ couplings in pp collisions at √s = 1.96- TeV}.",
abstract = "We present a study of eeγ and μμγ events using 1109 (1009) pb−1 of data in the electron (muon) channel, respectively. These data were collected with the D{\O} detector at the Fermilab Tevatron collider at . Having observed 453 (515) candidates in the eeγ (μμγ) final state, we measure the Zγ production cross section for a photon with transverse energy ET>7 GeV, separation between the photon and leptons ΔRℓγ>0.7, and invariant mass of the di-lepton pair Mℓℓ>30 GeV/c2, to be 4.96±0.30(stat.+syst.)±0.30(lumi.) pb, in agreement with the Standard Model prediction of 4.74±0.22 pb. This is the most precise Zγ cross section measurement at a hadron collider. We set limits on anomalous trilinear Zγγ and ZZγ gauge boson couplings of , and , at the 95% C.L. for the form-factor scale Λ=1.2 TeV.",
author = "Abazov, {V. M.} and Iain Bertram and Guennadi Borissov and Harald Fox and Peter Ratoff and Andre Sopczak",
year = "2007",
month = sep,
day = "27",
doi = "10.1016/j.physletb.2007.08.035",
language = "English",
volume = "653",
pages = "378--386",
journal = "Physics Letters B",
issn = "0370-2693",
publisher = "ELSEVIER SCIENCE BV",
number = "5-6",

}

RIS

TY - JOUR

T1 - Z γ production and limits on anomalous Z Z γ and Z γ γ couplings in pp collisions at √s = 1.96- TeV}.

AU - Abazov, V. M.

AU - Bertram, Iain

AU - Borissov, Guennadi

AU - Fox, Harald

AU - Ratoff, Peter

AU - Sopczak, Andre

PY - 2007/9/27

Y1 - 2007/9/27

N2 - We present a study of eeγ and μμγ events using 1109 (1009) pb−1 of data in the electron (muon) channel, respectively. These data were collected with the DØ detector at the Fermilab Tevatron collider at . Having observed 453 (515) candidates in the eeγ (μμγ) final state, we measure the Zγ production cross section for a photon with transverse energy ET>7 GeV, separation between the photon and leptons ΔRℓγ>0.7, and invariant mass of the di-lepton pair Mℓℓ>30 GeV/c2, to be 4.96±0.30(stat.+syst.)±0.30(lumi.) pb, in agreement with the Standard Model prediction of 4.74±0.22 pb. This is the most precise Zγ cross section measurement at a hadron collider. We set limits on anomalous trilinear Zγγ and ZZγ gauge boson couplings of , and , at the 95% C.L. for the form-factor scale Λ=1.2 TeV.

AB - We present a study of eeγ and μμγ events using 1109 (1009) pb−1 of data in the electron (muon) channel, respectively. These data were collected with the DØ detector at the Fermilab Tevatron collider at . Having observed 453 (515) candidates in the eeγ (μμγ) final state, we measure the Zγ production cross section for a photon with transverse energy ET>7 GeV, separation between the photon and leptons ΔRℓγ>0.7, and invariant mass of the di-lepton pair Mℓℓ>30 GeV/c2, to be 4.96±0.30(stat.+syst.)±0.30(lumi.) pb, in agreement with the Standard Model prediction of 4.74±0.22 pb. This is the most precise Zγ cross section measurement at a hadron collider. We set limits on anomalous trilinear Zγγ and ZZγ gauge boson couplings of , and , at the 95% C.L. for the form-factor scale Λ=1.2 TeV.

U2 - 10.1016/j.physletb.2007.08.035

DO - 10.1016/j.physletb.2007.08.035

M3 - Journal article

VL - 653

SP - 378

EP - 386

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

IS - 5-6

ER -