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Measurement E209M33

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

Spokespersons: Daniel S. Carman

Measurement comment: cos(θKc.m.) bin: [-1.0: -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+ Λ, 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
1.64 0.1848 0.0487 0.0174
1.72 0.1666 0.0292 0.0174
1.8 0.0956 0.0252 0.0173
1.88 0.043 0.0199 0.0173
1.96 -0.061 0.0189 0.0173
2.04 0.0233 0.0254 0.0173
2.12 0.2961 0.0388 0.0177
2.2 0.2626 0.0485 0.0176
2.28 0.0969 0.0611 0.0173
2.36 0.0384 0.0708 0.0173