CLAS Physics Database

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Measurement E195M32

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′_z' vs. Q² (integrated over W, cos(θ_K^c.m.))
Coordinate system:
(x′,y′,z′), z′ along K⁺, y′ normal to hadronic 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′_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 :	0.3 — 3.5 GeV²
W :	1.6 — 2.4 GeV
E_beam :	6.535 GeV

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

Parameter (X axis): Q², GeV²

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

Measured data:

Q², GeV²	P′_z′	Data errors	Systematic errors
0.35	-0.13068	0.04315	0.05068
0.45	-0.05226	0.04428	0.04823
0.55	-0.0876	0.04948	0.04927
0.65	-0.26489	0.05506	0.04988
0.75	-0.09209	0.06101	0.05196
0.85	-0.15858	0.06743	0.05361
0.95	-0.24074	0.07458	0.05603
1.05	-0.23232	0.08257	0.05753
1.15	0.03169	0.09058	0.05795
1.25	-0.20613	0.09989	0.05927
1.35	-0.18635	0.10967	0.05993
1.45	-0.25333	0.11962	0.06157
1.6	-0.50305	0.09655	0.06107
1.8	-0.29617	0.11632	0.06226
2	-0.43568	0.13556	0.05876
2.2	-0.42034	0.15895	0.06086
2.4	-0.83631	0.1851	0.06114
2.65	-0.55958	0.1828	0.06203
2.95	-0.19955	0.22621	0.06452
3.3	-1	0.26525	0.07561