Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., Escalante Del Valle, A., Frühwirth, R., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Pitters, F. M., Rad, N., Schieck, J., Schöfbeck, R., Spanring, M., Templ, S., … Vetens, W. (2021). Search for the rare decay of the W boson into a pion and a photon in proton-proton collisions at s=13TeV. Physics Letters B, 819(136409). https://doi.org/10.1016/j.physletb.2021.136409