On the laser effect on particle decay in strong-field QED.

In light of the continuous growing laser technologies and facilities, we consider the effect of laser on particle decay in strong-field Quantum Electrodynamics (QED). For that, we investigate the effect of a strong electromagnetic field E L on the particle decay within the enhanced fluctuations of the surrounding vacuum. In particular, we show that the induced effective mass m p ∗ ( E L) ≃ m p 0 + δ m p ( E L) alters its decay width Γ p ∗ ( E L) , thing that results in an extremely small modification of the particle's lifetime τ p ∗ ( E L) τ p = χ E L ∼ 1. It has been found that this effect corresponds to either a stabilization (longer lifetime) χ E L > 1 or a destabilization (shorter lifetime) χ E L < 1 behavior, depending on the particle's mass and the strength of the laser field. By approaching the involved physical quantities according to the known data, we discuss the obtained results. [ABSTRACT FROM AUTHOR]