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Measurement E195M138

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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: [-0.5:0.0]

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 : 0.3 — 0.9 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 -0.19511 0.26028 0.11456
1.8 0.01651 0.10509 0.06298
1.88 -0.03517 0.07739 0.04342
1.96 -0.08344 0.08624 0.05655
2.04 0.01095 0.1159 0.0797
2.12 0.38751 0.15047 0.09203
2.2 0.03012 0.17946 0.09156
2.28 0.09877 0.2304 0.09824
2.36 0.29095 0.29449 0.10765