I. Ali, S. Hagmann, P. Richard, L. Cocke
J.R. Macdonald Laboratory, Kansas State University

Schmidt-Böcking
Institut fuer Kernphysik, August Euler Str. 6, D60486 Frankfurt, Germany

Using a position sensitive multi-hit detector system, we have measured the energy and angular distributions of the fragments emitted in the dissociation process of N₂ in the collisions with 0.5 MeV He¹⁺ and 1 MeV/u F⁸⁺. Complete information about the momentum of both emitted fragments are measured by the measured time of flight and the position of the fragments on the multi-hit detector system. The energy and emission angle are calculated from the measured momentum components of each detected fragment. The analyzed charge state of the projectile identifies the reaction channel involved whether it results from single or multiple ionization or capture processes. This experiment provides the highest possible differential information about momentum and charge states of the emitted fragments and the involved projectile. The first measured energy and angular distribution provide rich information about the dynamics of the dissociation process, the symmetry of the molecular states and many electron processes in the process of the dissociation of the diatomic molecule.

Supported by the Division of Chemical Sciences, Office of Basic Energy Sciences, Office of Energy Research, U.S. Department of Energy.

Submitted to DAMOP/APS Centennial Meeting, Atlanta GA, in March 1999

 

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