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Measurement E209M28

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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+ 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 0.0189 0.0656 0.0173
1.72 -0.1588 0.0272 0.0174
1.8 -0.1451 0.0237 0.0174
1.88 -0.1344 0.023 0.0174
1.96 -0.2125 0.0222 0.0175
2.04 -0.1197 0.0217 0.0174
2.12 -0.0621 0.0215 0.0173
2.2 -0.0742 0.0206 0.0173
2.28 -0.03 0.0217 0.0173
2.36 -0.0098 0.0235 0.0173