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Measurement E209M27

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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+ 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 0.1801 0.0443 0.0174
1.72 -0.0143 0.022 0.0173
1.8 -0.1027 0.0187 0.0173
1.88 -0.0869 0.0186 0.0173
1.96 -0.0356 0.0202 0.0173
2.04 -0.014 0.0216 0.0173
2.12 -0.0311 0.024 0.0173
2.2 -0.0096 0.0278 0.0173
2.28 0.0817 0.0333 0.0173
2.36 0.1868 0.0404 0.0174