CLAS Physics Database

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Measurement E151M2813

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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 :	0.0171 GeV²
W :	1475 GeV
ε :	0.7707
E_beam :	1.3383 GeV
ε_L:	0.027

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	42	0.1221	0.2091	0.0301
0.45	30	0.6299	0.2032	0.0325
0.45	54	-0.2502	0.2428	0.0304
0.45	138	0.3099	0.2502	0.0306
0.45	150	-0.3987	0.2586	0.031
0.45	222	-0.0751	0.2682	0.03
0.45	234	-0.2761	0.223	0.0305
0.45	246	0.1111	0.2627	0.0301
0.55	18	0.2313	0.2546	0.0304
0.55	30	0.2268	0.2247	0.0303
0.55	42	-0.1627	0.2349	0.0302
0.55	126	-0.1128	0.2391	0.0301
0.55	138	0.1734	0.1784	0.0302
0.55	150	-0.0582	0.2059	0.03
0.55	210	0.228	0.2093	0.0303
0.55	222	-0.0788	0.1983	0.03
0.55	234	-0.165	0.1969	0.0302
0.55	246	-0.2178	0.2718	0.0303
0.65	126	-0.316	0.2152	0.0307
0.65	138	0.1296	0.194	0.0301
0.65	150	-0.2121	0.218	0.0303
0.65	162	-0.3052	0.2319	0.0306
0.65	198	-0.2097	0.2652	0.0303
0.65	210	-0.29	0.2259	0.0306
0.65	222	0.0186	0.1691	0.03
0.65	234	0.3433	0.1622	0.0308
0.65	246	-0.3433	0.194	0.0308
0.75	126	-0.1623	0.2894	0.0302
0.75	138	0.2006	0.2511	0.0303
0.75	150	0.1022	0.2578	0.0301
0.75	162	0.0179	0.2389	0.03
0.75	210	-0.2621	0.2439	0.0305
0.75	222	0.2254	0.1699	0.0303
0.75	234	0.0462	0.1609	0.03
0.75	246	0.2507	0.1944	0.0304
0.85	126	0.0934	0.2314	0.0301
0.85	138	0.0133	0.2464	0.03
0.85	210	-0.4574	0.2171	0.0314
0.85	222	-0.1716	0.1953	0.0302
0.85	234	-0.2614	0.1638	0.0305
0.85	246	0.0678	0.2206	0.03
0.85	258	-0.2068	0.2742	0.0303
0.25	42	-0.6599	0.2148	0.0328
0.35	30	0.2691	0.3961	0.0305
0.35	42	0.2995	0.2767	0.0306
0.45	18	-0.0174	0.3724	0.03
0.45	30	-0.5259	0.2382	0.0318
0.45	42	0.0266	0.3577	0.03
0.45	138	-0.1946	0.349	0.0303
0.45	222	0.1288	0.3786	0.0301
0.45	234	-0.0781	0.3392	0.03
0.55	30	0.5029	0.2114	0.0316
0.55	42	-0.0106	0.2883	0.03
0.55	126	0.3287	0.4066	0.0307
0.55	138	-0.0743	0.3068	0.03
0.55	150	0.7457	0.1762	0.0335
0.55	210	-0.2363	0.2918	0.0304
0.55	222	-0.0721	0.2607	0.03
0.55	234	-0.1681	0.26	0.0302
0.55	246	0.5651	0.2611	0.0321
0.65	42	0.1777	0.4107	0.0302
0.65	126	0.1824	0.3336	0.0302
0.65	138	-0.2542	0.2997	0.0304
0.65	150	-0.2812	0.3205	0.0305
0.65	162	-0.3692	0.306	0.0309
0.65	210	0.3429	0.3166	0.0308
0.65	222	0.0151	0.2792	0.03
0.65	234	0.28	0.2401	0.0305
0.65	246	-0.283	0.2689	0.0305
0.75	138	-0.0921	0.376	0.0301
0.75	150	0.2124	0.3971	0.0303
0.75	162	0.8704	0.1806	0.0347
0.75	198	-0.499	0.2808	0.0316
0.75	210	-0.2286	0.2645	0.0303
0.75	222	-0.3665	0.2161	0.0309
0.75	234	0.0331	0.2351	0.03
0.75	246	0.0488	0.2794	0.03
0.85	126	-0.0673	0.3486	0.03
0.85	138	0.2122	0.3355	0.0303
0.85	210	-0.4996	0.2988	0.0316
0.85	222	0.2275	0.3061	0.0303
0.85	234	-0.2025	0.2494	0.0303
0.85	246	-0.1132	0.3123	0.0301
0.95	222	0.474	0.2797	0.0315
0.95	234	-0.3369	0.3204	0.0307