期刊
PHYSICAL REVIEW C
卷 98, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.98.045205
关键词
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资金
- DOE [DE-FG02-87ER40315]
- United States Department of Energy [DE-AC05-84ER40150]
- National Science Foundation
- Chilean Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
- French Centre National de la Recherche Scientifique
- French Commissariat a l'Energie Atomique
- Italian Istituto Nazionale di Fisica Nucleare
- National Research Foundation of Korea
- Scottish Universities Physics Alliance (SUPA)
- United Kingdom's Science and Technology Facilities Council
- STFC [ST/T002077/1, ST/P004458/1, ST/P004385/1, ST/P004385/2, ST/L00478X/2] Funding Source: UKRI
- Science and Technology Facilities Council [ST/P004458/1, ST/T002077/1] Funding Source: researchfish
We report the first measurements of the E beam-target helicity asymmetry for the (gamma) over right arrow (n) over right arrow -> K-0 Lambda and K-0 Sigma(0) channels in the energy range 1.70 <= W <= 2.34 GeV. The CLAS system at Jefferson Lab uses a circularly polarized photon beam and a target consisting of longitudinally polarized solid molecular hydrogen deuteride with low background contamination for the measurements. The multivariate analysis method boosted decision trees is used to isolate the reactions of interest. Comparisons with predictions from the KaonMAID, SAID, and Bonn-Gatchina models are presented. These results will help separate the isospin I = 0 and I = 1 photocoupling transition amplitudes in pseudoscalar meson photoproduction.
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