On the rearrangement time of the fission reaction

TL;DR

This paper estimates the rearrangement time of the fission reaction to be approximately 0.17 yoctoseconds by analyzing the isotopic distribution widths and applying the energy-time uncertainty principle.

Contribution

It introduces a method to determine the fission rearrangement time using isotopic distribution widths and quantum uncertainty principles.

Findings

Rearrangement time is approximately 0.17 yoctoseconds.

Isotopic distribution width relates to neutron-number uncertainty.

Energy-time uncertainty principle applied to fission fragments.

Abstract

The rearrangement time \Deltat of the fission reaction can be extracted from the full-width at half maximum (f.w.h.m.) of the isotopic distributions of fission fragments if this width is attributed to an uncertainty \DeltaN in the neutron-number N of the fragment; then the energy-time uncertainty relation leads to \Deltat = 0.17 yoctosecond.