CLAS Physics Database

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Measurement E195M17

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′_x 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′_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 :	0.4 — 4.5 GeV²
W :	1.6 — 2.4 GeV
E_beam :	7.546 GeV

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

Parameter (X axis): Q², GeV²

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

Measured data:

Q², GeV²	P′_x	Data errors	Systematic errors
0.45	0.01311	0.01911	0.02432
0.55	-0.00019	0.01504	0.01994
0.65	-0.01577	0.01578	0.01925
0.75	0.01866	0.01681	0.01871
0.85	0.02018	0.01794	0.01858
0.95	0.00774	0.01932	0.0179
1.05	-0.06366	0.02067	0.01734
1.15	-0.05704	0.02257	0.01777
1.25	0.00627	0.02465	0.01845
1.35	-0.02316	0.02623	0.0171
1.45	-0.02376	0.0282	0.01678
1.6	0.03446	0.02235	0.01666
1.8	-0.02136	0.0262	0.01707
2	-0.01306	0.0305	0.01651
2.2	0.05613	0.03578	0.01649
2.4	0.09613	0.04105	0.01648
2.65	0.01366	0.03958	0.01671
2.95	-0.01424	0.04865	0.01637
3.3	-0.00549	0.0542	0.01679
4	-0.03789	0.05065	0.01666