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Pair annihilation in laser pulses: Optical versus x-ray free-electron laser regimes
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2011 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 84, no 3, 032119- p.Article in journal (Refereed) Published
Abstract [en]

We discuss the theory and phenomenology of pair annihilation, within an ultrashort laser pulse, to a single photon. The signature of this process is the unidirectional emission of single photons with a fixed energy. We show that the cross section is significantly larger than for two-photon pair annihilation in vacuum, with x-ray free-electron laser parameters admitting a much clearer signal than optical beams.

Place, publisher, year, edition, pages
New York, N.Y.: Publ. by the American Physical Society through the American Institute of Physics , 2011. Vol. 84, no 3, 032119- p.
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:umu:diva-48462DOI: 10.1103/PhysRevA.84.032119ISI: 000295261900001OAI: oai:DiVA.org:umu-48462DiVA: diva2:450961
Available from: 2011-10-24 Created: 2011-10-20 Last updated: 2017-12-08Bibliographically approved

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Ilderton, AntonJohansson, PetterMarklund, Mattias
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