CLAS Physics Database

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Measurement E195M14

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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 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 :	0.4 — 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	-0.14205	0.01864	0.02432
0.55	-0.15302	0.01466	0.01994
0.65	-0.15023	0.01541	0.01925
0.75	-0.16816	0.0165	0.01871
0.85	-0.18505	0.01756	0.01858
0.95	-0.14343	0.01885	0.0179
1.05	-0.17557	0.02026	0.01734
1.15	-0.12835	0.02229	0.01777
1.25	-0.19598	0.02414	0.01845
1.35	-0.17769	0.02576	0.0171
1.45	-0.16779	0.02781	0.01678
1.6	-0.16989	0.02183	0.01666
1.8	-0.23383	0.02573	0.01707
2	-0.32056	0.02957	0.01651
2.2	-0.27482	0.03551	0.01649
2.4	-0.26728	0.0406	0.01648
2.65	-0.32868	0.03979	0.01671
2.95	-0.21489	0.04893	0.01637
3.3	-0.37408	0.05356	0.01679
4	-0.20904	0.05078	0.01666