A new type of interference phenomenon in cold collisions of electrons with N sub(2)

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 N sub(2), down to energies of 10 meV, reveal this phenomenon through the angular distribution of scattered...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2011-10, Vol.44 (19), p.195204-1-7
Main Authors: Sulc, M, Curik, R, Ziesel, J P, Jones, N C, Field, D
Format: Article
Language:English
Subjects:
Angular distribution
Angular momentum
Collisions
Electron scattering
Interference
Mathematical analysis
Mathematical models
Quadrupoles
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Summary: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 N sub(2), 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 N sub(2). 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.
ISSN:0953-4075
DOI:10.1088/0953-4075/44/19/195204