Spin correlations in nonperturbative electron-positron pair creation by 
petawatt laser pulses colliding with a TeV proton beam

Müller, Tim-Oliver; Müller, Carsten

doi:10.1016/j.physletb.2010.12.023

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Journal Article

Spin correlations in nonperturbative electron-positron pair creation by petawatt laser pulses colliding with a TeV proton beam

MPS-Authors

Müller, Carsten
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

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http://dx.doi.org/10.1016/j.physletb.2010.12.023
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1007.5176v1
(Preprint), 263KB

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Citation

Müller, T.-O., & Müller, C. (2011). Spin correlations in nonperturbative electron-positron pair creation by petawatt laser pulses colliding with a TeV proton beam. Physics Letters B, 696(3), 201-206. doi:10.1016/j.physletb.2010.12.023.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-4C49-4

Abstract

The influence of the electron spin degree of freedom on nonperturbative electron–positron pair production by high-energy proton impact on an intense laser field of circular polarization is analyzed. Predictions from the Dirac and Klein–Gordon theories are compared and a spin-resolved calculation is performed. We show that the various spin configurations possess very different production probabilities and discuss the transfer of helicity in this highly nonlinear process. Our predictions could be tested by combining the few-TeV proton beam at CERN-LHC with an intense laser pulse from a table-top petawatt laser source.