Abstract
We outline a new kinetic theory for positrons in soft matter, which blends together cross sections for positrons scattering from single molecules, with the structure function of the medium as a whole. Numerical results are presented for positrons in liquid argon, where negative differential conductivity arises from both positron formation and the structure of the medium.
Original language | English |
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Article number | 230602 |
Journal | Physical Review Letters |
Volume | 102 |
Issue number | 23 |
DOIs | |
Publication status | Published - 9 Jun 2009 |