Baringer, Philip S.Bean, AliceHensel, CarstenMoulik, TaniaWilson, Graham WallaceAbazov, V. M.Abbott, B.Abolins, M.Acharya, B. S.2014-10-292014-10-292008-06-20V. M. Abazov et al. (D0 Collaboration). (2008). "First Study of the Radiation-Amplitude Zero in Wγ Production and Limits on Anomalous WWγ Couplings at s√=1.96  TeV." Physical Review Letters, 100(24):214805. http://dx.doi.org/10.1103/PhysRevLett.100.2418050031-9007https://hdl.handle.net/1808/15422This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.100.241805.We present results from a study of pp-bar→Wγ+X events utilizing data corresponding to 0.7  fb(−1) of integrated luminosity at s√=1.96  TeV collected by the D0 detector at the Fermilab Tevatron Collider. We set limits on anomalous WWγ couplings at the 95% C.L. The one-dimensional 95% C.L. limits are 0.49<κ(γ)<1.51 and −0.12<λ(γ)<0.13. We make the first study of the charge-signed rapidity difference between the lepton and the photon and find it to be indicative of the standard model radiation-amplitude zero in the Wγ system.Article10.1103/PhysRevLett.100.241805openAccess