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Measurement E209M69

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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 : 0.9 — 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
1.72 -0.952 0.6613 0.0724
1.8 -0.9504 0.4115 0.0724
1.88 -0.0297 0.2705 0.0715
1.96 -0.9584 0.2734 0.0724
2.04 -0.9548 0.3529 0.0724
2.12 -0.8924 0.3873 0.0723
2.2 -0.9529 0.3294 0.0724
2.28 -0.9582 0.3539 0.0724
2.36 -0.9535 0.437 0.0724