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Measurement E209M41

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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 : 0.4 — 1 GeV2
W : 1.625 — 2.4 GeV
Ebeam : 7.546 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 -0.2295 0.0657 0.0175
1.72 -0.3207 0.039 0.0177
1.8 -0.3238 0.0382 0.0177
1.88 -0.1158 0.0314 0.0173
1.96 0.2516 0.0309 0.0176
2.04 0.2186 0.0413 0.0175
2.12 0.1667 0.0636 0.0174
2.2 0.3452 0.0803 0.0178
2.28 0.2402 0.0993 0.0175
2.36 0.282 0.1092 0.0176