Anisotropic fragmentation in low-energy dissociative recombination
  On a dense energy grid reaching up to 75 meV electron collision energy the fragmentation angle and the kinetic energy release of neutral dissociative recombination fragments have been studied in a twin merged beam experiment. The anisotropy described by Legendre polynomials and the extracted rotational state contributions were found to vary on a likewise narrow energy scale as the rotationally averaged rate coefficient. For the first time angular dependences higher than 2$^{nd}$ order could be deduced. Moreover, a slight anisotropy at zero collision energy was observed which is caused by the flattened velocity distribution of the electron beam. 
S. Novotny, H. Rubinstein, H. Buhr, O. Novotn\'y, J. Hoffmann, M.B.   Mendes, D.A. Orlov, M.H. Berg, M. Froese, A.S. Jaroshe...