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Measurement E195M142

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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: [3.5:0.9] GeV^2
cos(θKc.m.) bin: [-0.5:0.0]

Publication:

Quantity measured: P′z,
z 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 : 0.9 — 3.5 GeV2
W : 1.6 — 2.4 GeV
Ebeam : 6.535 GeV

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

Parameter (X axis): W, GeV

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

Measured data:

W,
GeV
P′z Data errors Systematic errors
1.64 0 0 0
1.72 0.11836 0.40636 0.13792
1.8 0.2243 0.14547 0.06558
1.88 0.07753 0.12636 0.05117
1.96 0.2765 0.15247 0.0624
2.04 -0.19913 0.21199 0.08072
2.12 0.0936 0.29859 0.10321
2.2 -0.21237 0.32786 0.07868
2.28 0.71561 0.41849 0.09316
2.36 0.35806 0.49608 0.07828