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Measurement E195M170

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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: [-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 : 0.4 — 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 -0.46433 0.37253 0.10479
1.8 0.01256 0.16329 0.061
1.88 0.0541 0.13281 0.0453
1.96 0.12151 0.1509 0.06493
2.04 -0.01882 0.20341 0.08528
2.12 0.62465 0.26769 0.09751
2.2 -0.60328 0.33775 0.10106
2.28 0.62194 0.37838 0.09168
2.36 0.19114 0.465 0.09965