Investigations of fast neutron production by 190 GeV/c muon interactions on different targets
V. Chazal (Universite de Neuchatel), F. Boehm (California Institute of, Technology), B. Cook (California Institute of Technology), H. Henrikson, (California Institute of Technology), G. Jonkmans (Universite de Neuchatel),, A. Paic (Universite de Neuchatel)
TL;DR
This study measures the energy spectrum, angular distribution, and differential cross section of fast neutrons produced by 190 GeV/c muons interacting with carbon, copper, and lead, to better understand background in underground experiments.
Contribution
It provides new experimental data on neutron production in muon-nucleus interactions at high energies across different target materials.
Findings
Neutron energy spectra vary with target material.
Angular distributions show anisotropy depending on target.
Differential cross sections are quantified for each target.
Abstract
The production of fast neutrons (1 MeV - 1 GeV) in high energy muon-nucleus interactions is poorly understood, yet it is fundamental to the understanding of the background in many underground experiments. The aim of the present experiment (CERN NA55) was to measure spallation neutrons produced by 190 GeV/c muons scattering on carbon, copper and lead targets. We have investigated the energy spectrum and angular distribution of spallation neutrons, and we report the result of our measurement of the neutron production differential cross section.
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