Year: 2025
Type: article
Abstract: Background: Measurements of the polarization observables ς,P,T,Ox,Oz for the reaction γ - p→KS0ς+ using a linearly polarized photon beam of energy 1.1 to 2.1 GeV are reported. Purpose: The measured data provide information on a channel that has not been studied extensively, but is required for a full coupled-channel analysis in the nucleon resonance region. Method: Observables have been simultaneously extracted using likelihood sampling with a Markov-Chain Monte Carlo process. Results: Angular distributions in bins of photon energy Eγ are produced for each polarization observable. T,Ox, and Oz are first time measurements of these observables in this reaction. The extraction of ς extends the energy range beyond a previous measurement. The measurement of P, the recoil polarization, is consistent with previous measurements. Conclusions: The measured data are shown to be significant enough to affect the estimation of the nucleon resonance parameters when fitted within a coupled-channels model.
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, National Research Foundation, Deutsche Forschungsgemeinschaft, Forschungszentrum Jülich, National Research Foundation of Korea, Centre National de la Recherche Scientifique, Istituto Nazionale di Fisica Nucleare, Science and Technology Facilities Council, Comisión Nacional de Investigación Científica y Tecnológica, Thomas Jefferson National Accelerator Facility
Awards: Nuclear Physics Consolidated Grant, G1454008454, G1728142190, G2263355576, G256797447, G2702141073, G2988778103, Nuclear Physics Consolidated Grant, G3518886221, TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik, G7520763071, SFB 1639: NuMeriQS: Numerische Methoden zur Untersuchung von Dynamik und Strukturbildung in Quantensystemen
OpenAlex ID: W7042769557
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