Particle trajectories in light pulse spacetime

In our previous work [R. Falcone and C. Conti, Phys. Rev. Res. 7, 033079 (2025).], we derived the metric tensor for cylindrically shaped pulses with uniform energy density. Building upon that framework, we derive the complete set of geodesics with zero angular velocity. We show that perturbations in particle trajectories may be observed in gamma ray bursts. Also, deviations in the motion of moving particles are significantly larger than those previously found for particles that are initially at rest.