Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-06-29
Phys.Lett.A371:399-405,2007
Astronomy and Astrophysics
Astrophysics
to appear in Phys. Lett. A
Scientific paper
10.1016/j.physleta.2007.06.056
We evidence the existence of plasma oscillations of electrons-positron pairs created by the vacuum polarization in an uniform electric field with E < Ec. Our general treatment, encompassing also the traditional, well studied case of E > Ec, shows the existence in both cases of a maximum Lorentz factor acquired by electrons and positrons and allows determination of the a maximal length of oscillation. We quantitatively estimate how plasma oscillations reduce the rate of pair creation and increase the time scale of the pair production. These results are particularly relevant in view of the experimental progress in approaching the field strengths E < Ec.
Ruffini Remo
Vereshchagin Gregory V.
Xue She-Sheng
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