CLAS Physics Database

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Measurement E195M38

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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 :	0.4 — 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	0.12543	0.08537	0.05613
0.55	-0.01635	0.07413	0.04833
0.65	-0.09154	0.08287	0.05267
0.75	0.05673	0.08935	0.05208
0.85	0.00695	0.09863	0.05467
0.95	0.26604	0.10891	0.05764
1.05	-0.1822	0.11723	0.05717
1.15	0.22786	0.13087	0.05988
1.25	-0.05614	0.14133	0.0594
1.35	0.01598	0.15781	0.06399
1.45	0.20098	0.16963	0.06304
1.6	0.15491	0.14011	0.06869
1.8	0.13687	0.16359	0.06806
2	0.05035	0.19205	0.07012
2.2	0.1388	0.22961	0.07302
2.4	0.76206	0.26694	0.07068
2.65	0.32817	0.26755	0.06998
2.95	0.34636	0.3157	0.06528
3.3	-0.2424	0.35752	0.07052
4	0.42356	0.33988	0.07259