CSL Collapse Model Mapped with the Spontaneous Radiation

TL;DR

This paper derives new, stringent upper limits on CSL collapse model parameters by analyzing IGEX X-ray data, effectively constraining the model's parameter space and advancing understanding of spontaneous radiation phenomena.

Contribution

It provides the most stringent limits to date on CSL parameters by analyzing experimental X-ray data and mapping the collapse rate and correlation length.

Findings

Most stringent limits on CSL parameters established

Exclusion of a broad range of the parameter space

Enhanced understanding of spontaneous photon emission

Abstract

In this paper, new upper limits on the parameters of the Continuous Spontaneous Localization (CSL) collapse model are extracted. To this end, the X-ray emission data collected by the IGEX collaboration are analyzed and compared with the spectrum of the spontaneous photon emission process predicted by collapse models. This study allows the obtainment of the most stringent limits within a relevant range of the CSL model parameters, with respect to any other method. The collapse rate $\lambda$ and the correlation length $r_C$ are mapped, thus allowing the exclusion of a broad range of the parameter space.