CLAS Physics Database

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Measurement E195M80

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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′_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⁺ 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′_z,
Plot measurement data

Parameter (X axis): W, GeV

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

Measured data:

W, GeV	P′_z	Data errors	Systematic errors
1.64	0.42387	0.03996	0.02194
1.72	0.35115	0.01866	0.01414
1.8	0.34841	0.01833	0.01419
1.88	0.36143	0.02036	0.01464
1.96	0.37181	0.0223	0.01593
2.04	0.3657	0.02464	0.01643
2.12	0.30252	0.02617	0.01593
2.2	0.35582	0.0273	0.01599
2.28	0.3309	0.0295	0.01628
2.36	0.41577	0.03149	0.01637