CLAS Physics Database

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Measurement E195M1

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Experiment: CLAS12 RG-K, 2022

Spokespersons: Daniel S. Carman

Measurement comment: P′_x' vs. cos(θ_K^c.m.) (integrated over Q², W)
Coordinate system:
(x′,y′,z′), z′ along K⁺, y′ normal to hadronic 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): cos(θ_K^c.m.),

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

Measured data:

cos(θ_K^c.m.)	P′_x′	Data errors	Systematic errors
-0.96	-0.17961	0.07505	0.02984
-0.88	-0.21424	0.0237	0.02478
-0.8	-0.20843	0.01819	0.02141
-0.72	-0.24517	0.01731	0.01978
-0.64	-0.25049	0.0174	0.01985
-0.56	-0.22185	0.0177	0.01985
-0.48	-0.21694	0.01822	0.01999
-0.4	-0.2121	0.01842	0.02063
-0.32	-0.20922	0.0186	0.02099
-0.24	-0.23221	0.01854	0.02134
-0.16	-0.20996	0.01847	0.02097
-0.08	-0.19328	0.01815	0.02097
0	-0.2404	0.01771	0.02044
0.08	-0.2217	0.01711	0.0192
0.16	-0.20509	0.01665	0.01857
0.24	-0.19476	0.01608	0.01799
0.32	-0.22291	0.01526	0.01695
0.4	-0.23832	0.01426	0.01593
0.48	-0.23021	0.01328	0.01517
0.56	-0.2433	0.01273	0.01492
0.64	-0.22527	0.01228	0.01469
0.72	-0.23923	0.01219	0.01487
0.8	-0.18987	0.01265	0.01494
0.88	-0.1265	0.01451	0.01534
0.96	-0.05888	0.01937	0.01661