CLAS Physics Database

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Measurement E151M3419

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).

No publications available for this experiment

Quantity measured: A_LU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.4155 GeV²
W :	1295 GeV
ε :	0.9435
E_beam :	2.999 GeV
ε_L:	0.9396

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
Plot measurement data

Parameter (X axis): φ(π⁺), degrees

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

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_LU	Stat. error	Syst. error
0.05	66	-0.2868	0.2595	0.0305
0.15	66	0.1626	0.2526	0.0302
0.25	66	-0.627	0.2384	0.0325
0.45	282	0.0765	0.2629	0.03
0.55	66	0.0778	0.2526	0.03
0.55	78	0.0209	0.2249	0.03
0.55	90	0.1672	0.2735	0.0302
0.55	270	-0.2336	0.2158	0.0304
0.55	282	-0.0452	0.2157	0.03
0.65	66	-0.0718	0.1956	0.03
0.65	78	-0.1976	0.1792	0.0303
0.65	90	0.03	0.2073	0.03
0.65	102	0.2535	0.2456	0.0304
0.65	258	-0.0682	0.2452	0.03
0.65	270	0.1677	0.2001	0.0302
0.65	282	-0.0532	0.2286	0.03
0.65	294	0.184	0.186	0.0302
0.65	306	0.3568	0.2338	0.0308
0.75	66	-0.0482	0.1892	0.03
0.75	78	0.0647	0.1786	0.03
0.75	90	-0.0847	0.185	0.03
0.75	102	0.3103	0.1813	0.0306
0.75	258	0.379	0.179	0.0309
0.75	270	-0.021	0.1873	0.03
0.75	282	-0.1197	0.2154	0.0301
0.75	294	-0.4073	0.1727	0.0311
0.75	306	0.2719	0.1929	0.0305
0.75	318	0.4294	0.2271	0.0312
0.85	54	0.3077	0.2676	0.0306
0.85	66	-0.0879	0.2113	0.0301
0.85	78	0.0977	0.1801	0.0301
0.85	90	0.1097	0.1846	0.0301
0.85	102	-0.0203	0.2026	0.03
0.85	114	0.0806	0.2124	0.03
0.85	234	-0.1213	0.255	0.0301
0.85	246	-0.1972	0.1961	0.0303
0.85	258	-0.2045	0.1644	0.0303
0.85	270	0.1602	0.2016	0.0302
0.85	282	0.089	0.1874	0.0301
0.85	294	0.2465	0.2052	0.0304
0.85	306	0.3176	0.191	0.0307
0.85	318	-0.2922	0.214	0.0306
0.85	330	0.1393	0.2573	0.0301
0.95	54	0.0916	0.2559	0.0301
0.95	66	-0.4863	0.2296	0.0315
0.95	78	0.1677	0.2611	0.0302
0.95	90	0.0785	0.2389	0.03
0.95	102	-0.4081	0.2311	0.0311
0.95	114	-0.0941	0.2639	0.0301
0.95	234	-0.2468	0.2436	0.0304
0.95	246	-0.1067	0.2937	0.0301
0.95	258	-0.1142	0.2607	0.0301
0.95	270	0.0412	0.2051	0.03
0.95	282	0.297	0.222	0.0306
0.95	294	-0.0051	0.2354	0.03
0.95	306	0.0637	0.2563	0.03
0.95	318	0.1779	0.2723	0.0302