![HEP2026: 42nd Conference on Recent Developments in High Energy Physics and Cosmology [NTUA] Jul 8 – 11, 2026](/event/1654737/logo-1929213524.png){kind=logo}
Speaker
Description
Laser-driven particle acceleration provides a promising route to accessing extreme field conditions relevant to high-energy physics and laboratory studies of electron–positron plasma formation.
However, exploring these regimes remains challenging, as existing modeling approaches are both computationally intensive and inherently fragmented: particle-in-cell (PIC), magnetohydrodynamic
(MHD), and Monte Carlo methods each resolve specific aspects of the interaction, but their separation prevents a unified, end-to-end description of the full laser–matter interaction sequence
and limits predictive optimization. Here, we present a fast, analytical, end-to-end multiphysics framework that captures the complete evolution of laser–target interactions in solid-density materials, from energy deposition and plasma formation to the generation of accelerating fields and high-energy particle emission. The model provides a self-consistent, physics-based description of the dominant mechanisms governing energy
transfer and particle acceleration, while remaining computationally efficient and scalable across a wide range of laser conditions.
Although less detailed than fully kinetic approaches, the framework enables rapid exploration of parameter space and delivers an end-to-end, predictive overview of laser-to-particle coupling. It has been validated against experimental data from multiple high-power laser facilities, demonstrating strong predictive capability.
As a case study, we use this model to identify regimes that enhance hot-electron generation and energy coupling, key prerequisites for secondary processes such as Bremsstrahlung-mediated positron production. The model thus provides a practical tool for designing and optimizing experiments approaching pair-production conditions, enabling controlled access to regimes relevant for high-energy-density physics and laboratory pair-plasma studies.