CLAS Physics Database

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Measurement E195M41

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

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

Publication:

D. S. Carman et al. (CLAS Collaboration) Beam-recoil transferred polarization in K + Y electroproduction in the nucleon resonance region with CLAS12 // https://journals.aps.org/prc/abstract/10.1103/PhysRevC.105.065201

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
E_beam :	7.546 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
0.45	-0.03943	0.0813	0.05613
0.55	-0.01167	0.07117	0.04833
0.65	0.09866	0.08001	0.05267
0.75	0.19599	0.08598	0.05208
0.85	0.0321	0.09458	0.05467
0.95	0.26875	0.10487	0.05764
1.05	-0.19726	0.11231	0.05717
1.15	0.22825	0.12462	0.05988
1.25	-0.13839	0.1356	0.0594
1.35	0.15206	0.14927	0.06399
1.45	0.07164	0.16333	0.06304
1.6	0.40813	0.13431	0.06869
1.8	-0.00382	0.1536	0.06806
2	0.18029	0.18812	0.07012
2.2	-0.16159	0.21951	0.07302
2.4	0.05908	0.25056	0.07068
2.65	0.21976	0.24612	0.06998
2.95	-0.08758	0.29447	0.06528
3.3	0.2625	0.33532	0.07052
4	0.05292	0.32426	0.07259