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Measurement E209M68

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

Spokespersons: Daniel S. Carman

Measurement comment: cos(θKc.m.) bin: [0.5: 1.0]

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 -0.0371 0.5312 0.0715
1.8 -0.6048 0.3304 0.0719
1.88 -0.8458 0.1944 0.0722
1.96 -0.8352 0.2134 0.0722
2.04 -0.7504 0.1794 0.072
2.12 -0.8087 0.1578 0.0721
2.2 -0.5009 0.1478 0.0717
2.28 -0.5405 0.1324 0.0718
2.36 -0.5483 0.1333 0.0718