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Measurement E195M87

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: Coordinate system:
    (x′,y′,z′), z′ along K+, y′ normal to hadronic plane, x′=y′ x z′
Q2 bin: [1:4.5] 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+ Λ, 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 -0.2412 0.06104 0.02689
1.72 -0.15664 0.03406 0.01483
1.8 -0.18813 0.03498 0.01509
1.88 -0.24237 0.04101 0.01656
1.96 -0.30158 0.04899 0.02048
2.04 -0.2856 0.05359 0.01968
2.12 -0.30839 0.05988 0.01846
2.2 -0.34346 0.06698 0.01745
2.28 -0.17302 0.07808 0.01779
2.36 -0.25059 0.08732 0.017