Abstract
A first study of positron annihilation as a function of positron energy was performed. The rate of annihilation of low-energy positrons in molecular gases was discussed. It was shown that the large observed values of annihilation rates are due to the excitation of long-lived vibrational resonances of the positron-molecule complex. The results are consistent with a theoretical model of resonant annihilation.
Original language | English |
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Article number | 043201 |
Pages (from-to) | 432011-432014 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 88 |
Issue number | 4 |
Publication status | Published - 28 Jan 2002 |
Externally published | Yes |