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Measurement E195M169

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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: [1:0.4] GeV^2
cos(θKc.m.) bin: [-1.0:-0.5]

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 : 0.4 — 1 GeV2
W : 1.6 — 2.4 GeV
Ebeam : 7.546 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 0.47732 0.64281 0.13002
1.8 0.23792 0.24134 0.08325
1.88 -0.34875 0.19624 0.07369
1.96 -0.20051 0.20583 0.08038
2.04 -0.60812 0.25029 0.09918
2.12 0.22925 0.28428 0.1013
2.2 -0.3028 0.28908 0.08228
2.28 -0.24648 0.32229 0.08419
2.36 0.04218 0.42684 0.10184