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Measurement E209M40

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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 : 0.9 — 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
1.64 -0.0104 0.0415 0.0173
1.72 -0.0614 0.0172 0.0173
1.8 -0.0563 0.0169 0.0173
1.88 -0.0571 0.0194 0.0173
1.96 -0.1185 0.0224 0.0173
2.04 -0.139 0.0252 0.0174
2.12 -0.1753 0.0271 0.0174
2.2 -0.3069 0.0285 0.0177
2.28 -0.2278 0.0317 0.0175
2.36 -0.1842 0.0339 0.0174