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Radiative deflection by spin effect in the quantum radiation-reaction regime

Authors :
Geng, X. S.
Ji, L. L.
Shen, B. F.
Feng, B.
Guo, Z.
Han, Q. Q.
Qin, C. Y.
Wang, N. W.
Wang, W. Q.
Wu, Y. T.
Yan, X.
Yu, Q.
Zhang, L. G.
Xu, Z. Z.
Publication Year :
2019

Abstract

The colliding between ultra-relativistic electrons and an ultra-intense laser pulse is a powerful approach to testify the physics in strong-field QED regime. By considering spin-dependent radiation-reaction during laser-electron collision we find anti-symmetric deflection of electrons with different spin states. We revealed that such deflection is induced by the non-zero work done by radiation-reaction force along field polarization-direction in a half-period of phase, which is larger for spin-anti-paralleled electrons and smaller for spin-paralleled electrons. The spin-projection on the magnetic field of an electron gets inversed in adjacent half-periods due to oscillating magnetic field and therefore the deflection due to spin-dependent radiation is accumulated rather than vanishing. The new mechanism provides an extra dimension to observe quantum radiation-reaction effect in the strong-field QED regime by measuring the anti-symmetric distribution.<br />Comment: 5 pages, 4 figures

Subjects

Subjects :
Physics - Plasma Physics

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1901.10641
Document Type :
Working Paper
Full Text :
https://doi.org/10.1088/1367-2630/ab623b