CLAS Physics Database

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Measurement E195M44

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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 :	0.4 — 4.5 GeV²
W :	1.6 — 2.4 GeV
E_beam :	7.546 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
0.45	0.01822	0.0856	0.05613
0.55	-0.14637	0.07348	0.04833
0.65	0.00055	0.08152	0.05267
0.75	-0.1489	0.08733	0.05208
0.85	0.13449	0.09565	0.05467
0.95	-0.01775	0.10591	0.05764
1.05	0.14789	0.11342	0.05717
1.15	-0.10715	0.12587	0.05988
1.25	-0.19821	0.1361	0.0594
1.35	-0.31667	0.15081	0.06399
1.45	-0.00443	0.16344	0.06304
1.6	-0.32152	0.13517	0.06869
1.8	-0.11386	0.15605	0.06806
2	-0.27152	0.18589	0.07012
2.2	-0.3142	0.21894	0.07302
2.4	-0.72221	0.25144	0.07068
2.65	0.25335	0.24978	0.06998
2.95	-0.32282	0.29131	0.06528
3.3	1	0.33715	0.07052
4	-0.01367	0.31146	0.07259