Radiation reaction in ultrarelativistic laser-spinning electron interactions

Seto, Keita*; Nagatomo, Hideo*; Koga, J. K.; Mima, Kunioki*

The intensity of ultra-short pulse lasers has reached W/cm owing to the advancements in laser technology. The large radiation from the electron behaves something like resistance in this ultrarelativistic laser-electron interaction. This effect is called the "radiation reaction". The equation of motion with the radiation reaction is known as the Lorentz-Abraham-Dirac equation; however, this equation does not incorporate the spin property. In laser plasmas, classical physics descriptions are preferred for simulations. This paper discusses how to describe the radiation reaction of a spinning relativistic electron in classical dynamics.