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Measurement E209M67

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Experiment: CLAS12 RG-K K+Y recoil polarization, 2025

Spokespersons: Daniel S. Carman

Measurement comment: cos(θKc.m.) bin: [0.0: 0.5]

Publication:

Quantity measured: P0y′,
y projection of recoil polarization P0; in (x',y',z') system
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: K+ Σ0, polarization: polarized

Q2 : 0.3 — 0.9 GeV2
W : 1.625 — 2.4 GeV
Ebeam : 6.535 GeV

Observable quantity measured (Y axis): P0y′,
Plot measurement data

Parameter (X axis): W, GeV

Click here to get data in text file, delimited with tabs.

Measured data:

W,
GeV
P0y′ Data errors Systematic errors
1.72 -0.2444 0.7668 0.0715
1.8 -0.4789 0.1619 0.0717
1.88 -0.5568 0.0895 0.0718
1.96 -0.1552 0.0943 0.0715
2.04 0.0855 0.1123 0.0715
2.12 0.0616 0.1246 0.0715
2.2 -0.0464 0.1381 0.0715
2.28 -0.2252 0.1613 0.0715
2.36 -0.2993 0.1915 0.0716