Interaction of 160 GeV- Muon with Emulsion Nuclei

TL;DR

This study investigates high-energy muon interactions with emulsion nuclei, revealing electromagnetic dissociation and multi-fragmentation phenomena through detailed measurements of emitted fragments.

Contribution

It provides experimental data on muon-induced electromagnetic dissociation and multi-fragmentation of emulsion nuclei at 160 GeV, highlighting ultra-peripheral collision effects.

Findings

Observation of multi-fragmentation due to electromagnetic dissociation

Measurement of charge, energy, and angular distributions of fragments

Evidence of giant resonances in emulsion target nuclei

Abstract

In this work we present some results of the interaction of high energy muons with emulsion nuclei. The interaction results in emission of a number of fragments as a consequence of electromagnetic dissociation of the excited target nuclei. This excitation is attributed to absorption of photons by the target nuclei due to the intense electric field of the very fast incident muon particles. The interactions take place at impact parameters that allows ultra-peripheral collisions to take place, leading to giant resonances and hence multi-fragmentation of emulsion targets. Charge identification, range, energy spectra, angular distribution and topological cross-section of the produced fragments are measured and evaluated