CLAS Physics Database

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Measurement E195M26

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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⁺ Σ⁰, 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′	Data errors	Systematic errors
0.35	-0.00316	0.04296	0.05068
0.45	0.10591	0.04434	0.04823
0.55	-0.03825	0.05038	0.04927
0.65	0.1346	0.05635	0.04988
0.75	0.01512	0.06279	0.05196
0.85	-0.00618	0.06937	0.05361
0.95	0.04116	0.07694	0.05603
1.05	0.04375	0.08501	0.05753
1.15	-0.02483	0.09408	0.05795
1.25	0.03879	0.10344	0.05927
1.35	0.18834	0.11498	0.05993
1.45	0.18808	0.12501	0.06157
1.6	0.22227	0.10057	0.06107
1.8	0.1751	0.11999	0.06226
2	0.24152	0.14299	0.05876
2.2	-0.11817	0.16919	0.06086
2.4	0.15309	0.19889	0.06114
2.65	-0.03294	0.19449	0.06203
2.95	0.2865	0.24513	0.06452
3.3	-0.31842	0.28871	0.07561