CLAS Physics Database

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Measurement E151M3116

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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 :	0.0496 GeV²
W :	1625 GeV
ε :	0.8052
E_beam :	1.9889 GeV
ε_L:	0.0429

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
0.35	30	0.1765	0.2652	0.0302
0.35	66	-0.2805	0.2493	0.0305
0.35	78	-0.176	0.2475	0.0302
0.35	270	-0.293	0.2609	0.0306
0.45	78	0.0198	0.2396	0.03
0.45	90	-0.0308	0.2841	0.03
0.45	258	-0.1227	0.2456	0.0301
0.45	270	0.1363	0.205	0.0301
0.45	282	0.2767	0.2497	0.0305
0.45	294	-0.2073	0.2443	0.0303
0.55	78	0.3223	0.2639	0.0307
0.55	90	-0.101	0.2412	0.0301
0.55	102	-0.2291	0.2688	0.0303
0.55	114	0.0325	0.2528	0.03
0.55	138	0.2729	0.2211	0.0305
0.55	210	0.4438	0.2257	0.0313
0.55	222	-0.2359	0.2372	0.0304
0.55	246	0.1641	0.2763	0.0302
0.55	258	0.1735	0.2389	0.0302
0.55	270	0.0527	0.1968	0.03
0.55	282	0.4068	0.2006	0.0311
0.65	78	0.0878	0.2761	0.0301
0.65	114	-0.0608	0.2615	0.03
0.65	126	-0.1773	0.2128	0.0302
0.65	138	0.1497	0.2222	0.0301
0.65	150	0.5983	0.2446	0.0323
0.65	198	0.0297	0.2812	0.03
0.65	210	-0.0443	0.2498	0.03
0.65	222	0.2552	0.2295	0.0304
0.65	234	0.0609	0.231	0.03
0.65	258	0.4528	0.2511	0.0313
0.65	282	0.0978	0.22	0.0301
0.65	294	-0.1926	0.2557	0.0302
0.75	66	-0.3199	0.2324	0.0307
0.75	78	-0.3068	0.2183	0.0306
0.75	102	0.248	0.2714	0.0304
0.75	126	0.1657	0.2498	0.0302
0.75	138	-0.1724	0.2577	0.0302
0.75	198	-0.2685	0.2472	0.0305
0.75	210	-0.4758	0.1777	0.0315
0.75	222	-0.1472	0.2101	0.0301
0.75	234	0.0825	0.2309	0.03
0.75	258	0.6905	0.2397	0.033
0.75	270	0.3759	0.2147	0.0309
0.75	282	-0.0569	0.1979	0.03
0.75	294	0.1257	0.2594	0.0301
0.85	102	-0.5685	0.2153	0.0321
0.85	114	-0.2266	0.2167	0.0303
0.85	138	-0.5397	0.2228	0.0319
0.85	198	0.2236	0.2569	0.0303
0.85	210	-0.1306	0.2092	0.0301
0.85	222	0.074	0.1967	0.03
0.85	234	-0.3601	0.2138	0.0309
0.85	246	0.3036	0.2379	0.0306