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Updated: May 25, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Wγ production and limits on anomalous WWγ couplings in pp collisions at sqrt[s] = 1.96 TeV
V M Abazov1, B Abbott, B S Acharya
1Joint Institute for Nuclear Research, Dubna, Russia.
Abstract:
We measure the cross section and the difference in rapidities between photons and charged leptons for inclusive W(→lν) + γ production in eγ and μγ final states. Using data corresponding to an integrated luminosity of 4.2 fb(-1) collected with the D0 detector at the Fermilab Tevatron Collider, the measured cross section times branching fraction for the process pp → Wγ + X → lνγ + X and the distribution of the charge-signed photon-lepton rapidity difference are found to be in agreement with the standard model. These results provide the most stringent limits on anomalous WWγ couplings for data from hadron colliders: -0.4<Δκ(γ)<0.4 and -0.08<λ(γ)<0.07 at the 95% C.L.
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