CLAS Physics Database

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Measurement E195M63

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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: [0.0:0.5]

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 :	0.9 — 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	0.00763	0.0439	0.02538
1.72	0.01309	0.02287	0.01506
1.8	-0.01748	0.02407	0.0149
1.88	-0.02127	0.02784	0.016
1.96	-0.03796	0.03233	0.01811
2.04	0.00316	0.0355	0.01892
2.12	-0.00636	0.0394	0.01777
2.2	0.00141	0.04387	0.01615
2.28	-0.10397	0.0495	0.01716
2.36	-0.09553	0.05829	0.01815