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Measurement E195M40

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′x vs. cos(θKc.m.) (integrated over Q2, W)
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+ Σ0, polarization: polarized

Q2 : 0.4 — 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): cos(θKc.m.),

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

Measured data:

cos(θKc.m.) P′x Data errors Systematic errors
-0.96 -1 0.67491 0.09139
-0.88 0.51112 0.20349 0.07859
-0.8 0.17853 0.16582 0.07087
-0.72 0.11886 0.16626 0.07327
-0.64 0.01441 0.16527 0.07309
-0.56 0.04648 0.15939 0.06828
-0.48 0.14439 0.15064 0.06297
-0.4 0.36568 0.14591 0.05836
-0.32 -0.01977 0.14177 0.05777
-0.24 0.22843 0.13863 0.05846
-0.16 -0.00592 0.1366 0.05839
-0.08 0.09129 0.12971 0.05609
0 -0.13397 0.12859 0.05593
0.08 0.25043 0.1292 0.05716
0.16 -0.07236 0.12617 0.05493
0.24 -0.16616 0.12356 0.05288
0.32 0.13516 0.12372 0.05246
0.4 -0.01143 0.11909 0.04822
0.48 -0.18373 0.11567 0.04424
0.56 0.0644 0.1114 0.04244
0.64 0.03494 0.11142 0.04265
0.72 0.10361 0.11146 0.04527
0.8 -0.06787 0.12048 0.05384
0.88 0.34747 0.14264 0.06548
0.96 0.29938 0.199 0.08806