S-Matrix Analysis of Coincident Measurement of Two-Electron Energy Distribution 
for Double Ionization of He in an Intense Laser Field

Becker, A.; Faisal, F. H. M.

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S-Matrix Analysis of Coincident Measurement of Two-Electron Energy Distribution for Double Ionization of He in an Intense Laser Field

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Becker, A.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Becker, A., & Faisal, F. H. M. (2002). S-Matrix Analysis of Coincident Measurement of Two-Electron Energy Distribution for Double Ionization of He in an Intense Laser Field. Physical Review Letters, 89(19): 193003. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000089000019193003000001&idtype=cvips&gifs=yes.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-36A1-9

Abstract

Analyses of two mechanisms of double ionization of He in an intense femtosecond laser pulse are made within the S-matrix theory. Their contributions are compared with each other and with the recent data of coincidence measurements for two- electron energy distributions. It is found that the correlated energy-sharing mechanism reproduces the data remarkably well and also confirms the so-called "excessive production" of hot electrons in the process. In contrast, the shakeoff mechanism is found to fail completely to account for either the strength or the trend of the data and is therefore ruled out.