# Zgamma production and limits on anomalous ZZgamma and Zgammgamma couplings in ppbar collisions at sqrt(s)=1.96 TeV

Abstract : We present a measurement of ppbar->Zgamma->ll+gamma (l = e, mu) production with a data sample corresponding to an integrated luminosity of 6.2 fb^{-1} collected by the D0 detector at the Fermilab Tevatron ppbar Collider. The results of the electron and muon channels are combined, and we measure the total production cross section and the differential cross section dsigma/dp_T^gamma, where p_T^gamma is the momentum of the photon in the plane transverse to the beamline. The results obtained are consistent with the standard model predictions from next-to-leading order calculations. We use the transverse momentum spectrum of the photon to place limits on anomalous ZZgamma and Zgammagamma couplings.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00641968
Contributor : Emmanuelle Vernay <>
Submitted on : Thursday, November 17, 2011 - 8:54:41 AM
Last modification on : Sunday, June 20, 2021 - 3:35:06 AM

### Citation

V.M. Abazov, B. Abbott, B.S. Acharya, M. Adams, T. Adams, et al.. Zgamma production and limits on anomalous ZZgamma and Zgammgamma couplings in ppbar collisions at sqrt(s)=1.96 TeV. Physical Review D, American Physical Society, 2012, 85, pp.052001. ⟨10.1103/PhysRevD.85.052001⟩. ⟨in2p3-00641968⟩

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