S Novotny et al 2009 J. Phys.: Conf. Ser. 192 012024 doi:10.1088/1742-6596/192/1/012024
S Novotny1, H Rubinstein2, H Buhr1,2, O Novotný1, J Hoffmann1, M B Mendes1, D A Orlov1, M H Berg1, M Froese1, A S Jaroshevich1,3, B Jordon-Thaden1, M Grieser1, C Krantz1, M Lange1, M Lestinsky1, A Petrignani1, I F Schneider4, D Shafir2, F O Waffeu Tamo4, D Zajfman2, D Schwalm1,2 and A Wolf1
Show affiliationsOn 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 and the extracted rotational state contributions were found to sensitively depend on energy. Both show pronounced variations on a likewise narrow energy scale as the rotationally averaged rate coefficient. For the first time angular dependences described by Legendre polynomials higher than 2nd 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.
34.80.Lx Recombination, attachment, and positronium formation
33.15.Mt Rotation, vibration, and vibration-rotation constants
82.30.Lp Decomposition reactions (pyrolysis, dissociation, and fragmentation)
Issue 1 (2009)
S Novotny et al 2009 J. Phys.: Conf. Ser. 192 012024
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