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Measurement E209M46

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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: 0.0]

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 : 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, GeV

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

Measured data:

W,
GeV
P0y′ Data errors Systematic errors
1.64 -0.0127 0.0667 0.0173
1.72 -0.1423 0.0321 0.0174
1.8 -0.1726 0.033 0.0174
1.88 -0.0977 0.0391 0.0173
1.96 0.0183 0.0563 0.0173
2.04 -0.1131 0.0807 0.0173
2.12 -0.0713 0.1069 0.0173
2.2 -0.1588 0.1471 0.0174
2.28 0.2432 0.2043 0.0175
2.36 0.1863 0.2986 0.0174