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Measurement E195M5

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′x vs. Q2 (integrated over W, cos(θKc.m.))
Coordinate system:
    (x,y,z), z along virtual photon direction, y normal to electron scattering plane, x=y x z

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 : 0.3 — 3.5 GeV2
W : 1.6 — 2.4 GeV
Ebeam : 6.535 GeV

Observable quantity measured (Y axis): P′x,
Plot measurement data

Parameter (X axis): Q2, GeV2

Click here to get data in text file, delimited with tabs.

Measured data:

Q2,
GeV2
P′x Data errors Systematic errors
0.35 -0.01177 0.00935 0.0211
0.45 0.00654 0.00912 0.02005
0.55 -0.0333 0.00994 0.01928
0.65 0.00116 0.01076 0.01848
0.75 -0.00146 0.0117 0.01813
0.85 -0.03759 0.01268 0.01767
0.95 0.00622 0.01373 0.01762
1.05 -0.00244 0.01484 0.01704
1.15 -0.02589 0.01605 0.01707
1.25 0.01131 0.0173 0.01677
1.35 -0.00797 0.01893 0.0167
1.45 -0.03439 0.02055 0.01691
1.6 0.00248 0.01665 0.01688
1.8 0.0148 0.01973 0.01714
2 0.04614 0.02313 0.01716
2.2 -0.0264 0.02721 0.01708
2.4 0.08014 0.03182 0.01723
2.65 -0.01682 0.03126 0.01702
2.95 -0.07199 0.03641 0.01648
3.3 -0.07325 0.03989 0.01605