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Measurement E195M123

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: Coordinate system:
    (x,y,z), z along virtual photon direction, y normal to electron scattering plane, x=y x z
Q2 bin: [0.9:0.3] GeV^2
cos(θKc.m.) bin: [0.0:0.5]

Publication:

Quantity measured: P′x,
x projection of beam-recoil transferred polarization P′ in (x,y,z) system
Beam: e, polarization: none
Target: p (Z=1, A=1), polarization: none
Final state: K+ Σ0, polarization: polarized

Q2 : 0.3 — 0.9 GeV2
W : 1.6 — 2.4 GeV
Ebeam : 6.535 GeV

Observable quantity measured (Y axis): P′x,
Plot measurement data

Parameter (X axis): W, GeV

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

Measured data:

W,
GeV
P′x Data errors Systematic errors
1.64 0 0 0
1.72 0.47174 0.28232 0.12583
1.8 0.11904 0.11453 0.07585
1.88 0.18708 0.0813 0.04612
1.96 -0.08914 0.08386 0.05005
2.04 0.03933 0.09328 0.05982
2.12 0.1134 0.09937 0.06189
2.2 -0.19739 0.10714 0.05842
2.28 -0.13474 0.1223 0.05408
2.36 0.04995 0.14221 0.05217