CLAS Physics Database

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Measurement E195M47

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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 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′_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	-0.06958	0.08546	0.05613
0.55	0.06225	0.07449	0.04833
0.65	0.08189	0.08348	0.05267
0.75	-0.09032	0.09041	0.05208
0.85	0.07522	0.0993	0.05467
0.95	-0.18293	0.10997	0.05764
1.05	0.18928	0.11836	0.05717
1.15	-0.17047	0.13251	0.05988
1.25	0.11354	0.14108	0.0594
1.35	0.04411	0.1585	0.06399
1.45	-0.27177	0.1721	0.06304
1.6	-0.2163	0.14162	0.06869
1.8	-0.05496	0.16509	0.06806
2	-0.42924	0.19442	0.07012
2.2	-0.47406	0.23122	0.07302
2.4	-0.76334	0.26791	0.07068
2.65	-0.49349	0.27326	0.06998
2.95	-1	0.31819	0.06528
3.3	0.59753	0.35675	0.07052
4	-0.10874	0.33363	0.07259