CLAS Physics Database

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Measurement E195M64

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: Coordinate system:
(x,y,z), z along virtual photon direction, y normal to electron scattering plane, x=y x z
Q² bin: [3.5:0.9] GeV^2
cos(θ_K^c.m.) bin: [0.5:1.0]

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⁺ Λ, polarization: polarized

Q² :	0.9 — 3.5 GeV²
W :	1.6 — 2.4 GeV
E_beam :	6.535 GeV

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

Parameter (X axis): W, GeV

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

Measured data:

W, GeV	P′_x	Data errors	Systematic errors
1.64	0.05382	0.04098	0.02194
1.72	0.05541	0.01892	0.01414
1.8	0.01838	0.01857	0.01419
1.88	0.05622	0.02073	0.01464
1.96	0.0112	0.02282	0.01593
2.04	-0.01714	0.02513	0.01643
2.12	0.00373	0.02634	0.01593
2.2	-0.00898	0.02747	0.01599
2.28	-0.02669	0.02944	0.01628
2.36	-0.02351	0.03152	0.01637