CLAS Physics Database

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Measurement E195M59

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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: [0.9:0.3] GeV^2
cos(θ_K^c.m.) bin: [0.0:0.5]

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 :	0.3 — 0.9 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	0.04172	0.04027	0.02142
1.72	0.00142	0.0221	0.01826
1.8	-0.03103	0.01996	0.01882
1.88	0.00534	0.02017	0.01939
1.96	-0.00184	0.02128	0.02079
2.04	0.00105	0.02216	0.02037
2.12	0.00464	0.02406	0.01985
2.2	-0.05903	0.02759	0.02031
2.28	0.01646	0.03185	0.01959
2.36	-0.02444	0.03736	0.01833