Published In Phys. Rev. Lett. Date Fri, 10/02/2009 - 12:00 Volume 103 (14) Pages AN: 142501 DOI 10.1103/PhysRevLett.103.142501 Refine Cu Paper Category In-Source Spectroscopy Author(s) K T Flanagan P Vingerhoets M Avgoulea J Billowes M L Bissell K Blaum B Cheal M De Rydt V N Fedosseev D H Forest C Geppert U Köster M Kowalska J Krämer K L Kratz A Krieger E Mané B A Marsh T Materna L Mathieu P L Molkanov R Neugart G Neyens W Nörtershäuser M D Seliverstov O Serot M Schug MA Sjoedin J R Stone N J Stone H H Stroke G Tungate D T Yordanov Y M Volkov