Near threshold laser-modified proton emission in nuclear photoeffect

TL;DR

This paper investigates how intense laser fields influence proton emission probabilities in nuclear photoeffects near the threshold, highlighting the ratio of laser-assisted to free cross sections and its independence from polarization.

Contribution

It introduces a theoretical analysis of laser effects on nuclear proton emission near threshold, providing explicit ratios and their independence from polarization and initial states.

Findings

The ratio of laser-assisted to free cross sections is independent of laser polarization.

Numerical values of the ratio are provided for specific laser parameters.

Laser fields significantly modify proton emission probabilities near threshold.

Abstract

The change of the probability of proton emission in nuclear photoeffect due to an intense coherent (laser) field is discussed near the threshold, where the hindering effect of the Coulomb field of the remainder nucleus is essential. The ratio of laser-assisted and laser free differential cross section is deduced and found to be independent of the polarization state of the $\gamma $ field and the two types of initial nuclear state considered. The numerical values of this ratio are given at some characteristic parameters of the intense field.