G. Aad, T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, K. Augsten, T. Holý, Z. Hubáček, J. Jakůbek, Z. Kohout et al.: Measurement of Z Boson Production in Pb-Pb Collisions at root s(NN)=2.76 TeV with the ATLAS Detector. Physical Review Letters 110(2), 022301 (2013). doi:10.1103/PhysRevLett.110.022301