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Measurement E195M158

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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: [1:4.5] GeV^2
cos(θKc.m.) bin: [-0.5:0.0]

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 : 1 — 4.5 GeV2
W : 1.6 — 2.4 GeV
Ebeam : 7.546 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 0.92514 0.78589 0.15977
1.8 0.62192 0.21177 0.07177
1.88 -0.01412 0.17923 0.05584
1.96 -0.12791 0.20737 0.06114
2.04 0.34469 0.29776 0.08178
2.12 -1 0.41954 0.10595
2.2 0.27917 0.49571 0.09189
2.28 -0.57546 0.66932 0.09947
2.36 -0.93227 0.72737 0.08156