CLAS Physics Database

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Measurement E151M2760

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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 :	0.0348 GeV²
W :	1385 GeV
ε :	0.8491
E_beam :	1.3383 GeV
ε_L:	0.0904

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	0.8853	0.1814	0.0348
0.25	42	-0.427	0.2041	0.0316
0.35	18	0.1163	0.2471	0.0301
0.35	30	-0.3867	0.1468	0.0312
0.35	42	-0.7515	0.1064	0.0339
0.45	18	0.46	0.1651	0.032
0.45	30	0.2139	0.1654	0.0304
0.45	42	-0.0896	0.179	0.0303
0.55	42	0.5757	0.3053	0.0321
0.55	126	0.3523	0.3346	0.0308
0.55	138	0.0967	0.2183	0.0301
0.55	210	0.0481	0.27	0.03
0.55	222	-0.0495	0.1976	0.0311
0.55	234	0.1619	0.1856	0.0307
0.55	246	0.0797	0.1651	0.0304
0.55	258	0.0995	0.1947	0.0301
0.65	114	-0.0472	0.2815	0.03
0.65	126	-0.3633	0.1606	0.031
0.65	138	0.1799	0.1487	0.0302
0.65	150	-0.2482	0.1689	0.0304
0.65	162	-0.1273	0.2096	0.0302
0.65	210	-0.4681	0.234	0.0314
0.65	222	-0.2272	0.1537	0.0303
0.65	234	0.2298	0.1421	0.0305
0.65	246	0.1205	0.1415	0.0303
0.65	258	-0.18	0.1556	0.0306
0.75	114	0.3126	0.2256	0.0306
0.75	126	-0.2334	0.1678	0.0305
0.75	138	0.085	0.1526	0.0301
0.75	150	0.1805	0.1636	0.0306
0.75	162	-0.047	0.2091	0.03
0.75	174	0.0297	0.2603	0.03
0.75	186	-0.0521	0.2682	0.03
0.75	210	0.1101	0.3988	0.0301
0.75	222	-0.0294	0.1475	0.03
0.75	234	-0.0427	0.1202	0.0301
0.75	246	0.0096	0.136	0.0301
0.75	258	-0.0277	0.1535	0.0301
0.85	114	-0.0867	0.385	0.0301
0.85	126	0.1092	0.3852	0.0301
0.85	138	0.2384	0.3435	0.0304
0.85	150	-0.0945	0.3617	0.0301
0.85	162	0.5228	0.2632	0.0318
0.85	210	0.527	0.24	0.0318
0.85	222	-0.0819	0.3059	0.03
0.85	234	-0.1622	0.2652	0.0302
0.85	246	-0.2247	0.2142	0.0303
0.85	258	-0.0734	0.2238	0.03
0.85	270	0.3617	0.2729	0.0309
0.95	114	0.1839	0.3314	0.0302
0.95	126	-0.162	0.3716	0.0302
0.95	222	-0.1266	0.4417	0.0301
0.95	234	0.2462	0.3238	0.0304
0.95	246	0.4151	0.2817	0.0311
0.95	258	-0.0472	0.3779	0.03
0.75	270	-0.4833	0.2385	0.0315
0.85	114	-0.0144	0.2456	0.03
0.85	126	0.652	0.2127	0.0327
0.85	138	-0.0802	0.2148	0.03
0.85	150	0.0404	0.2084	0.03
0.85	162	0.0395	0.2382	0.03
0.85	210	0.254	0.2712	0.0304
0.85	222	-0.0535	0.2148	0.03
0.85	234	-0.1152	0.168	0.0301
0.85	246	0.1153	0.181	0.0301
0.85	258	-0.1044	0.19	0.0301
0.85	270	-0.3969	0.221	0.031
0.95	114	-0.0285	0.271	0.03
0.95	138	-0.501	0.2366	0.0316
0.95	222	-0.0473	0.2646	0.03
0.95	234	-0.061	0.2127	0.03
0.95	246	-0.3018	0.1801	0.0306
0.95	258	0.0867	0.2507	0.0301