Blurred femtoscopy in two-proton decay

TL;DR

This paper investigates how final state interactions affect two-proton emission in nuclei, revealing their significant influence on relative energy and correlation functions sensitive to the diproton spin.

Contribution

It introduces a time-dependent Schrödinger equation approach to analyze final state interactions in two-proton decay, highlighting their impact on observable correlations.

Findings

Final state interactions significantly alter the relative energy between emitted protons.

Correlation functions are highly sensitive to the spin configuration of the diproton.

Alternative correlation functions can effectively probe the spin state of the diproton system.

Abstract

We study the effects of final state interactions in two-proton emission by nuclei. Our approach is based on the solution the time-dependent Schr\"odinger equation. We show that the final relative energy between the protons is substantially influenced by the final state interactions. We also show that alternative correlation functions can be constructed showing large sensitivity to the spin of the diproton system.