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Measurement E209M47

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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 : 1 — 4.5 GeV2
W : 1.625 — 2.4 GeV
Ebeam : 7.546 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 -0.1396 0.0678 0.0174
1.72 -0.0151 0.0283 0.0173
1.8 -0.0546 0.0287 0.0173
1.88 0.0155 0.034 0.0173
1.96 -0.0455 0.042 0.0173
2.04 -0.1407 0.0469 0.0174
2.12 -0.0734 0.054 0.0173
2.2 -0.1519 0.0606 0.0174
2.28 0.0353 0.0699 0.0173
2.36 0.1325 0.0798 0.0174