State selective electron capture in 3H2++He collisions at intermediate impact energies

M. ALESSI; S. OTRANTO; P. FOCKE

PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS

AMER PHYSICAL SOC

Año: 2011 vol. 83 p. 147011 - 147014

1050-2947

In this work we have measured single-electron capture in collisions of 3He2+ projectiles incident on a helium target for energies of 13.3?100 keV/amu with the cold-target recoil-ion momentum spectroscopy setup implemented at the Centro At´omico Bariloche. State-selective single-capture cross sections were measured as a function of the impact energy. They were found to agree with previous existing data from the Frankfurt group, starting at the impact energy of 60 keV/amu; as well as with recent data, at 7.5 keV/amu, from the Lanzhou group. The present experimental results are also contrasted to the classical trajectory Monte Carlo method with dynamical screening.