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Measurement E195M143

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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′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 0.19852 0.31907 0.12085
1.8 -0.17627 0.13624 0.0564
1.88 -0.03656 0.11837 0.04332
1.96 -0.17363 0.13708 0.05166
2.04 -0.45367 0.16596 0.06449
2.12 -0.43987 0.18528 0.06905
2.2 -0.09235 0.20971 0.06715
2.28 -0.2306 0.23149 0.06277
2.36 -0.42985 0.27263 0.06437