Comments on Systematic Effects in the NIST Beam Neutron Lifetime Experiment

TL;DR

This paper defends the original NIST beam neutron lifetime measurements against recent criticisms, demonstrating that systematic effects were properly considered and that the reported neutron lifetime remains valid.

Contribution

The authors clarify misconceptions and confirm that their original analysis appropriately accounted for systematic effects in neutron lifetime measurement.

Findings

Systematic effects were properly considered in the original analysis

Corrections and uncertainties were appropriate and sufficient

Criticisms do not alter the reported neutron lifetime value

Abstract

We discuss issues raised by Serebrov, et al. in a recent paper regarding systematic effects in the beam neutron lifetime experiment performed at NIST. We show that these effects were considered in the original analyses and that our corrections and systematic uncertainties were appropriate. We point out some misconceptions and erroneous assumptions in the analysis of Serebrov, et al. None of the issues raised in Serebrov, et al lead us to alter the value of the neutron lifetime reported previously.