CLAS Physics Database

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Measurement E151M2719

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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 :	0.0245 GeV²
W :	1325 GeV
ε :	0.8999
E_beam :	1.3383 GeV
ε_L:	0.0957

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
0.25	30	-0.0598	0.2742	0.03
0.25	42	-0.1107	0.1584	0.0308
0.35	30	0.4694	0.2446	0.0314
0.35	42	-0.2432	0.2199	0.0304
0.35	54	0.0613	0.2749	0.03
0.45	30	0.0393	0.2712	0.03
0.55	234	0.3257	0.2196	0.0307
0.55	246	-0.0966	0.18	0.0301
0.55	258	-0.2326	0.213	0.0304
0.55	270	-0.3324	0.2184	0.0307
0.65	126	0.134	0.1998	0.0301
0.65	138	-0.3704	0.1825	0.0309
0.65	150	0.0122	0.2354	0.03
0.65	162	0.1775	0.233	0.0302
0.65	210	-0.3031	0.2402	0.0306
0.65	222	-0.1936	0.1848	0.0302
0.65	234	-0.1729	0.1565	0.0302
0.65	246	-0.0683	0.1321	0.03
0.65	258	0.2221	0.1771	0.0303
0.65	270	0.1265	0.2285	0.0301
0.75	114	0.0857	0.2284	0.03
0.75	126	-0.2585	0.1825	0.0304
0.75	138	0.0425	0.1481	0.03
0.75	150	0.0968	0.1805	0.0301
0.75	162	-0.1256	0.1805	0.0301
0.75	174	-0.3168	0.234	0.0307
0.75	210	-0.1121	0.2478	0.0301
0.75	222	0.2542	0.17	0.0304
0.75	234	-0.0292	0.1569	0.03
0.75	246	-0.3247	0.1336	0.0307
0.75	258	0.0489	0.1333	0.03
0.75	270	0.2325	0.2116	0.0304
0.85	126	0.2838	0.2165	0.0305
0.85	138	0.3833	0.1772	0.031
0.85	150	-0.2217	0.2498	0.0303
0.85	162	0.1469	0.2334	0.0301
0.85	174	0.097	0.239	0.0301
0.85	198	-0.2037	0.2373	0.0303
0.85	210	-0.2589	0.2382	0.0304
0.85	222	-0.1203	0.1715	0.0301
0.85	234	-0.1341	0.1552	0.0301
0.85	246	-0.0744	0.141	0.03
0.85	258	0.0559	0.1511	0.03
0.85	270	-0.1256	0.2228	0.0301
0.95	114	0.1179	0.2517	0.0301
0.95	126	0.4885	0.2526	0.0316
0.95	234	-0.0571	0.258	0.03
0.95	246	0.2315	0.2381	0.0304
0.95	258	-0.3796	0.2319	0.0309
0.25	54	0.4194	0.3662	0.0312
0.35	42	0.3571	0.2521	0.0308
0.35	54	-0.0494	0.365	0.03
0.45	30	0.3463	0.3032	0.0308
0.45	42	0.1313	0.3897	0.0301
0.55	30	0.0264	0.3309	0.03
0.55	234	0.0718	0.2936	0.03
0.55	246	-0.1646	0.2723	0.0302
0.55	258	-0.085	0.3129	0.03
0.55	270	-0.3284	0.325	0.0307
0.65	114	0.1986	0.3669	0.0303
0.65	126	-0.2832	0.2966	0.0305
0.65	138	-0.29	0.2654	0.0306
0.65	150	0.0272	0.2931	0.03
0.65	162	0.3439	0.3119	0.0308
0.65	210	-0.1895	0.3544	0.0302
0.65	222	-0.2975	0.2804	0.0306
0.65	234	0.1155	0.2152	0.0301
0.65	246	-0.2546	0.2082	0.0304
0.65	258	-0.2437	0.22	0.0304
0.65	270	-0.1057	0.374	0.0301
0.75	126	0.2348	0.2522	0.0304
0.75	138	-0.234	0.2372	0.0304
0.75	150	0.1953	0.2677	0.0303
0.75	162	0.2508	0.2679	0.0304
0.75	174	-0.0259	0.3432	0.03
0.75	210	-0.4118	0.2962	0.0311
0.75	222	0.0135	0.248	0.03
0.75	234	0.228	0.2076	0.0303
0.75	246	0.0956	0.2143	0.0301
0.75	258	0.1029	0.2527	0.0301
0.75	270	0.1144	0.3296	0.0301
0.85	114	-0.1938	0.3826	0.0302
0.85	126	0.0817	0.3143	0.03
0.85	138	0.3822	0.2836	0.031
0.85	150	0.1204	0.2987	0.0301
0.85	162	-0.8371	0.1442	0.0344
0.85	210	-0.1323	0.4216	0.0301
0.85	222	0.6246	0.1858	0.0325
0.85	234	0.1297	0.2181	0.0301
0.85	246	-0.0191	0.2132	0.03
0.85	258	0.1088	0.2053	0.0301
0.85	270	-0.1707	0.2666	0.0302
0.95	126	-0.1666	0.3069	0.0302
0.95	222	-0.5425	0.2768	0.0319
0.95	234	0.4446	0.2475	0.0313
0.95	246	-0.5702	0.2793	0.0321
0.95	258	0.5364	0.2812	0.0319