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Measurement E209M44

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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 : 0.4 — 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
1.64 -0.1073 0.0753 0.0173
1.72 -0.14 0.0315 0.0174
1.8 -0.2311 0.0301 0.0175
1.88 -0.232 0.031 0.0175
1.96 -0.1826 0.0318 0.0174
2.04 -0.1857 0.0322 0.0174
2.12 -0.1741 0.0312 0.0174
2.2 -0.1486 0.0318 0.0174
2.28 -0.1147 0.032 0.0173
2.36 -0.0168 0.0334 0.0173