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Measurement E209M38

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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: 0.0]

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+ Λ, polarization: polarized

Q2 : 0.9 — 3.5 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 -0.1442 0.047 0.0174
1.72 -0.0103 0.0246 0.0173
1.8 -0.0168 0.0253 0.0173
1.88 -0.0408 0.0303 0.0173
1.96 -0.0818 0.0419 0.0173
2.04 -0.2003 0.0612 0.0175
2.12 0.0896 0.0799 0.0173
2.2 0.3036 0.1101 0.0177
2.28 0.189 0.1454 0.0174
2.36 0.5605 0.2327 0.0186