CLAS Physics Database

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Measurement E151M2832

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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 :	1505 GeV
ε :	0.7324
E_beam :	1.3383 GeV
ε_L:	0.0225

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
0.45	30	0.3641	0.237	0.0309
0.45	42	-0.0474	0.2531	0.03
0.45	150	0.1739	0.2745	0.0302
0.45	210	0.1271	0.2766	0.0301
0.45	222	-0.1298	0.2581	0.0301
0.55	30	-0.0927	0.2693	0.0301
0.55	42	-0.3212	0.2201	0.0307
0.55	126	0.0249	0.2767	0.03
0.55	138	0.0349	0.2009	0.03
0.55	150	0.7962	0.1713	0.034
0.55	210	-0.2933	0.2123	0.0306
0.55	222	-0.0267	0.1797	0.03
0.55	234	-0.0077	0.2324	0.03
0.55	246	-0.2907	0.2461	0.0306
0.65	126	-0.007	0.2428	0.03
0.65	138	-0.1597	0.2145	0.0302
0.65	150	-0.2125	0.1939	0.0303
0.65	162	0.1975	0.2707	0.0303
0.65	198	0.1662	0.2662	0.0302
0.65	210	-0.5591	0.2137	0.032
0.65	222	0.1177	0.2111	0.0301
0.65	234	0.1818	0.1953	0.0302
0.65	246	-0.2663	0.2261	0.0305
0.75	138	-0.2308	0.2585	0.0304
0.75	150	-0.248	0.2567	0.0304
0.75	210	-0.5172	0.1945	0.0317
0.75	222	-0.1006	0.1986	0.0301
0.75	234	0.0569	0.2104	0.03
0.75	246	0.3383	0.2286	0.0308
0.85	114	-0.1875	0.2734	0.0302
0.85	126	0.1031	0.2329	0.0301
0.85	138	-0.2088	0.2394	0.0303
0.85	150	0.0125	0.2656	0.03
0.85	198	0.0472	0.2848	0.03
0.85	210	-0.209	0.247	0.0303
0.85	222	-0.2063	0.2152	0.0303
0.85	234	-0.1281	0.2117	0.0301
0.85	246	-0.0829	0.2652	0.03
0.35	42	-0.3805	0.2982	0.031
0.45	18	0.1907	0.4049	0.0302
0.45	30	0.1382	0.4083	0.0301
0.45	42	0.3115	0.3359	0.0306
0.45	138	-0.5566	0.2848	0.032
0.45	210	-0.4005	0.3246	0.0311
0.45	222	-0.5305	0.2359	0.0318
0.45	234	-0.4434	0.2288	0.0313
0.55	18	-0.013	0.4027	0.03
0.55	30	0.1586	0.3548	0.0302
0.55	42	0.2135	0.2606	0.0303
0.55	138	0.5883	0.2884	0.0322
0.55	150	0.2918	0.3148	0.0306
0.55	162	0.4739	0.388	0.0315
0.55	210	-0.1087	0.3225	0.0301
0.55	222	0.317	0.241	0.0307
0.55	234	-0.4619	0.2483	0.0314
0.55	246	-0.131	0.336	0.0301
0.65	138	0.3005	0.3787	0.0306
0.65	150	-0.0129	0.348	0.03
0.65	162	-0.6003	0.2542	0.0323
0.65	210	0.0366	0.2678	0.03
0.65	222	-0.1493	0.2601	0.0301
0.65	234	-0.1288	0.2377	0.0301
0.65	246	-0.0875	0.3006	0.0301
0.75	150	0.5248	0.3189	0.0318
0.75	210	0.3659	0.2987	0.0309
0.75	222	0.3066	0.2532	0.0306
0.75	234	0.4419	0.2543	0.0313
0.75	246	-0.773	0.1585	0.0337
0.85	126	-0.3081	0.3201	0.0306
0.85	222	-0.2034	0.2687	0.0303
0.85	234	0.1228	0.3054	0.0301
0.85	246	-0.6057	0.3295	0.0324