Abstract
The differential cross section for double photoionization of helium provides a sensitive tool for exploring electron-electron correlation since the absorption of one photon cannot lead to double escape without the two electrons interacting. However, differential cross sections for double photoionization are neither easy to calculate nor easy to measure. Moreover, while a great deal has been learned about the dynamics of double photoionization since the pioneering work by Wannier1 in 1953, a complete understanding has yet to be achieved. Over the last several years we have developed a method,2,3 based on the earlier work of Rudge and Seaton,4 for calculating differential cross sections for double photoionization of helium. In this paper we present some of our results and we compare them with selected data from recent measurements in the energy range 0 to 80 eV above threshold.
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Pont, M., Shakeshaft, R. (1997). Double Photoionization of Helium. In: Burke, P.G., Joachain, C.J. (eds) Photon and Electron Collisions with Atoms and Molecules. Physics of Atoms and Molecules. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-5917-7_9
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DOI: https://doi.org/10.1007/978-1-4615-5917-7_9
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