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Measurement E209M73

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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+ Σ0, 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
1.72 0.4529 0.7846 0.0717
1.8 -0.508 0.3917 0.0717
1.88 0.4756 0.222 0.0717
1.96 0.9413 0.247 0.0724
2.04 0.9834 0.3402 0.0725
2.12 -0.7184 0.3303 0.072
2.2 -0.8143 0.2931 0.0721
2.28 -0.9552 0.3323 0.0724
2.36 -0.95 0.41 0.0724