Baryon Spectroscopy at COMPASS
Alexander Austregesilo (for the the COMPASS collaboration)
TL;DR
This paper discusses the analysis of baryon spectra obtained from diffractive dissociation at COMPASS, highlighting the use of partial-wave analysis to understand light-baryon resonances in proton-proton interactions at 190 GeV/c.
Contribution
It presents new results on light-baryon spectra from COMPASS and discusses the application of partial-wave analysis techniques to disentangle complex resonance structures.
Findings
Identification of features in the light-baryon spectrum
Application of partial-wave analysis to proton-proton reactions
Insights into baryon resonance structures
Abstract
At the COMPASS experiment, diffractive dissociation of the beam proton is one of the dominant processes for the 190GeV/c positive hadron beam impinging on a liquid hydrogen target. The status of the analysis of the reactions pp -> p_f pi^+ pi^- p_s and pp -> p_f K^+ K^- p_s is presented, where dominant features of the light-baryon spectrum become clearly visible. Furthermore, partial-wave analysis techniques to disentangle these spectra are discussed.
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