Dear partners and colleagues,

since its foundation in 2009, many things have happened at the Helmholtz Institute Mainz: New research groups, spectacular research highlights, changes in staff or the construction of the HIM research buidling. The HIM Progress Report gives an overview on all you need to know!

Since its foundation in 2009, many things have happened at the Helmholtz Institute Mainz: New research groups, spectacular research highlights, changes in staff or the construction of the HIM research buidling.The HIM Progress Report gives an overview on all you need to know!

Since its foundation in 2009, many things have happened at the Helmholtz Institute Mainz: New research groups, spectacular research highlights, changes in staff or the construction of the HIM research buidling.The HIM Progress Report gives an overview on all you need to know!

Since its foundation in 2009, many things have happened at the Helmholtz Institute Mainz: New research groups, spectacular research highlights, changes in staff or the construction of the HIM research buidling.The HIM Progress Report gives an overview on all you need to know!

• HIM-2011-01, J. Guttmann, N. Kivel and M. Vanderhaeghen,
  Study of two-photon corrections in the p/bar p rightarrow e^+e^- process: hard rescattering mechanism, arXiv: 1101.5967v1 [hep-ph]
• HIM-2011-02, B.B. Brandt, S. Capitani S., M. Della Morte, M., et al.
  Form factors in lattice QCD, arXiv: 1106.1554v1[hep-lat]
• HIM-2011-03, F. Schmidt-Kaler, T. Feldker, D. Kolbe, et al.,
  Rydberg excitation of trapped cold ions: a detailed case study,
  arXiv:1104.3102v1 [physics.atom-ph], New Journal of Physics 13, 075014 8, 2011
• HIM-2011-04, S. Ulmer, K. Blaum, H. Kracke, et al.,
  Direct measurement of the free cyclotron frequency of a single particle in a Penning trap, Phys. Rev. Lett. 107, 103002, 2011