Baryon spectroscopy with polarization observables from CLAS
Steffen Strauch (for the CLAS Collaboration)
TL;DR
This paper discusses how polarization observables in meson photoproduction experiments at Jefferson Lab help clarify the complex spectrum of baryon resonances, advancing understanding of nucleon excitations.
Contribution
It presents recent experimental results from the N* program at Jefferson Lab using polarized beams and targets to study baryon resonances.
Findings
Enhanced understanding of baryon resonance spectrum
Use of polarization observables improves resonance identification
Recent experimental data from CLAS are summarized
Abstract
Meson photoproduction is an important tool in the study of baryon resonances. The spectrum of broad and overlapping nucleon excitations can be greatly clarified by use of polarization observables. The N* program at Jefferson Lab with the CEBAF Large Acceptance Spectrometer (CLAS) includes experimental studies with linearly and circularly polarized tagged photon beams, longitudinally and transversely polarized nucleon targets, and recoil polarizations. An overview of these experimental studies and recent results will be given.
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Taxonomy
TopicsSuperconducting Materials and Applications · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies