A new type of interference phenomenon in cold collisions of electrons with N2

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  • Miroslav Sulc, Institute of Theoretical Physics, Prague, Czech Republic
  • Roman Curik, J. Heyrovsky Institute of Physical Chemistry, Czech Republic
  • Jean-Pierre Ziesel, Universite Paul Sabatier, France
  • Nykola C. Jones
  • David Field

A novel cold collision phenomenon is described which is caused by interference within the manifold of electron waves of unit angular momentum (p-waves). Experimental electron scattering data in N2, down to energies of 10 meV, reveal this phenomenon through the angular distribution of scattered electrons. Ab initio theory, analytical results and a simple physical model illustrate how interference arises through the presence of a quadrupole on the target N2. The effect is of a general nature and may be found in all systems in which, in the cold regime, charged particles interact with target species with a permanent quadrupole moment.

Original languageEnglish
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Pages (from-to)195204
Number of pages7
Publication statusPublished - 13 Sep 2011

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