CLAS Physics Database

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Measurement E195M5

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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 :	0.3 — 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): Q², GeV²

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

Measured data:

Q², GeV²	P′_x	Stat. error	Syst. error
0.35	-0.01177	0.00935	0.0211
0.45	0.00654	0.00912	0.02005
0.55	-0.0333	0.00994	0.01928
0.65	0.00116	0.01076	0.01848
0.75	-0.00146	0.0117	0.01813
0.85	-0.03759	0.01268	0.01767
0.95	0.00622	0.01373	0.01762
1.05	-0.00244	0.01484	0.01704
1.15	-0.02589	0.01605	0.01707
1.25	0.01131	0.0173	0.01677
1.35	-0.00797	0.01893	0.0167
1.45	-0.03439	0.02055	0.01691
1.6	0.00248	0.01665	0.01688
1.8	0.0148	0.01973	0.01714
2	0.04614	0.02313	0.01716
2.2	-0.0264	0.02721	0.01708
2.4	0.08014	0.03182	0.01723
2.65	-0.01682	0.03126	0.01702
2.95	-0.07199	0.03641	0.01648
3.3	-0.07325	0.03989	0.01605