CLAS Physics Database

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Measurement E195M89

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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: [1:0.4] GeV^2
cos(θ_K^c.m.) bin: [-1.0:-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 :	0.4 — 1 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): 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	0.14411	0.07466	0.01497
1.72	0.00653	0.04446	0.01599
1.8	0.06236	0.04356	0.02043
1.88	-0.09159	0.03783	0.01999
1.96	0.00592	0.03817	0.01981
2.04	-0.02419	0.04953	0.02425
2.12	-0.0031	0.0698	0.03093
2.2	0.05184	0.09393	0.03813
2.28	-0.10381	0.10361	0.03574
2.36	0.10649	0.1064	0.03002