Research Papers in Physics and Astronomy

 

Date of this Version

3-5-2004

Comments

Published by American Physical Society. Phys. Rev. Lett. 92, 093201 (2004) http://prl.aps.org. Copyright © 2004 American Physical Society. Permission to use.

Abstract

We have measured the circular polarization of light emitted from both atomic H and molecular H2 after bombarding H2 with longitudinally polarized electrons. For both atomic and molecular fluorescence near threshold we observe a circular polarization as great as 10% of the electron polarization. This represents the first direct observation of spin transfer in electron-molecule collisions.

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