CLAS Physics Database

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Measurement E151M2663

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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 :	0.0291 GeV²
W :	1235 GeV
ε :	0.9428
E_beam :	1.3383 GeV
ε_L:	0.2131

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
0.15	42	0.2345	0.1712	0.0312
0.25	30	0.3485	0.2734	0.0308
0.25	42	0.2636	0.2154	0.0305
0.25	54	-0.0587	0.2353	0.03
0.35	42	0.1058	0.2468	0.0301
0.35	54	0.1086	0.2217	0.0301
0.45	270	-0.1551	0.2028	0.0302
0.45	282	-0.2413	0.2397	0.0304
0.55	246	-0.2937	0.2395	0.0306
0.55	258	0.1129	0.1615	0.0301
0.55	270	-0.0671	0.1753	0.03
0.55	282	0.0323	0.1976	0.03
0.65	234	-0.1604	0.2148	0.0302
0.65	246	0.2367	0.1329	0.0304
0.65	258	0.0065	0.1327	0.03
0.65	270	0.2189	0.1327	0.0303
0.65	282	-0.1302	0.1784	0.0301
0.75	138	0.0242	0.2395	0.03
0.75	150	0.1759	0.1911	0.0302
0.75	162	-0.162	0.2153	0.0302
0.75	174	-0.1361	0.2196	0.0301
0.75	186	-0.0049	0.2285	0.03
0.75	198	-0.2845	0.2434	0.0305
0.75	210	0.3509	0.2437	0.0308
0.75	222	-0.4728	0.2245	0.0315
0.75	234	-0.3167	0.1671	0.0307
0.75	246	0.0036	0.138	0.03
0.75	258	-0.1802	0.1265	0.0302
0.75	270	0.122	0.1402	0.0301
0.75	282	-0.1594	0.242	0.0302
0.85	126	0.1214	0.2052	0.0301
0.85	138	0.103	0.1525	0.0301
0.85	150	0.1496	0.1678	0.0301
0.85	162	-0.0306	0.1757	0.03
0.85	174	0.0456	0.1634	0.03
0.85	186	0.1567	0.2284	0.0302
0.85	198	-0.1397	0.2126	0.0301
0.85	210	-0.2206	0.2251	0.0303
0.85	222	-0.1239	0.2353	0.0301
0.85	234	-0.1056	0.216	0.0301
0.85	246	0.0709	0.1719	0.03
0.85	258	-0.1825	0.1438	0.0302
0.85	270	-0.2839	0.1966	0.0305
0.95	162	0.6054	0.2122	0.0324
0.15	54	-0.5413	0.3021	0.0319
0.25	30	-0.17	0.3041	0.0302
0.25	42	-0.2499	0.3536	0.0304
0.25	54	-0.1585	0.3792	0.0302
0.35	30	0.0101	0.3392	0.03
0.35	42	0.2206	0.2744	0.0303
0.45	270	-0.6055	0.2384	0.0324
0.45	282	0.3522	0.2458	0.0308
0.55	246	0.3978	0.3001	0.031
0.55	258	0.2662	0.2142	0.0305
0.55	270	-0.1077	0.1992	0.0301
0.55	282	-0.2479	0.3415	0.0304
0.65	234	-0.3947	0.28	0.031
0.65	246	0.4493	0.2135	0.0313
0.65	258	-0.3266	0.18	0.0307
0.65	270	0.1599	0.2028	0.0302
0.65	282	-0.2521	0.2563	0.0304
0.75	126	0.1086	0.3244	0.0301
0.75	138	-0.3573	0.2384	0.0308
0.75	150	-0.022	0.2646	0.03
0.75	162	-0.0474	0.2925	0.03
0.75	174	-0.2849	0.3405	0.0305
0.75	186	-0.0114	0.3349	0.03
0.75	198	0.3182	0.3692	0.0307
0.75	210	-0.729	0.2314	0.0334
0.75	222	-0.3299	0.2711	0.0307
0.75	234	-0.4347	0.2257	0.0312
0.75	246	0.0513	0.229	0.03
0.75	258	-0.2728	0.1886	0.0305
0.75	270	0.2828	0.1906	0.0305
0.75	282	0.2257	0.3119	0.0303
0.85	126	0.3018	0.2622	0.0306
0.85	138	-0.3988	0.2264	0.031
0.85	150	0.0192	0.2563	0.03
0.85	162	-0.2013	0.2335	0.0303
0.85	174	-0.2813	0.2234	0.0305
0.85	186	-0.0324	0.2838	0.03
0.85	198	0.0924	0.2998	0.0301
0.85	210	-0.0228	0.3411	0.03
0.85	222	-0.0122	0.3045	0.03
0.85	234	-0.3669	0.2289	0.0309
0.85	246	-0.0332	0.2384	0.03
0.85	258	0.493	0.1889	0.0316
0.85	270	-0.1913	0.2745	0.0302
0.95	186	-0.4081	0.3465	0.0311