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Measurement E209M39

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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 : 0.9 — 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,

Click here to get data in text file, delimited with tabs.

Measured data:

W P0y Data errors Systematic errors
1.64 -0.2377 0.0486 0.0175
1.72 -0.0938 0.0222 0.0173
1.8 -0.1001 0.0224 0.0173
1.88 -0.0236 0.026 0.0173
1.96 -0.1315 0.0313 0.0174
2.04 -0.0565 0.0351 0.0173
2.12 0.059 0.0394 0.0173
2.2 -0.0243 0.0447 0.0173
2.28 -0.0859 0.0514 0.0173
2.36 -0.0147 0.06 0.0173