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Measurement E195M127

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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: [0.0:0.5]

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 : 0.9 — 3.5 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 -0.31063 0.31061 0.12085
1.8 0.26613 0.12767 0.0564
1.88 0.26717 0.11146 0.04332
1.96 0.03898 0.13047 0.05166
2.04 -0.15775 0.15865 0.06449
2.12 -0.27277 0.18374 0.06905
2.2 0.33639 0.20239 0.06715
2.28 0.19715 0.22293 0.06277
2.36 -0.25999 0.26218 0.06437