CLAS Physics Database

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Measurement E151M3201

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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 :	0.1435 GeV²
W :	1295 GeV
ε :	0.9523
E_beam :	2.2596 GeV
ε_L:	0.5445

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	66	0.1079	0.2095	0.0301
0.35	66	0.4093	0.1931	0.0311
0.45	66	-0.2198	0.22	0.0303
0.45	78	-0.0105	0.2184	0.03
0.65	258	0.1105	0.2403	0.0301
0.65	270	-0.1346	0.2208	0.0301
0.65	282	-0.5352	0.2189	0.0319
0.75	90	-0.045	0.2589	0.03
0.75	102	0.1996	0.2134	0.0303
0.75	114	0.2105	0.2001	0.0303
0.75	246	-0.0953	0.2081	0.0301
0.75	258	-0.0049	0.2055	0.03
0.75	270	-0.0283	0.2034	0.03
0.75	282	0.079	0.1841	0.03
0.85	78	0.1692	0.2538	0.0302
0.85	90	-0.1963	0.1961	0.0303
0.85	102	-0.0775	0.1992	0.03
0.85	114	0.1696	0.1673	0.0302
0.85	126	0.3274	0.2153	0.0307
0.85	234	0.2785	0.2279	0.0305
0.85	246	-0.488	0.1932	0.0315
0.85	258	-0.1462	0.1735	0.0301
0.85	270	0.1702	0.1831	0.0302
0.85	282	0.2336	0.1889	0.0304
0.85	294	0.3086	0.2517	0.0306
0.95	90	0.53	0.2046	0.0318
0.95	102	0.2392	0.03
0.95	114	-0.0718	0.2335	0.03
0.95	126	0.2228	0.2178	0.0303
0.95	138	-0.0418	0.2415	0.03
0.95	150	0.032	0.2327	0.03
0.95	246	-0.2869	0.2633	0.0305
0.95	258	-0.0459	0.2415	0.03
0.95	270	0.1756	0.2218	0.0302
0.95	282	0.0519	0.2111	0.03
0.15	66	0.1062	0.2516	0.0301
0.35	66	0.0398	0.197	0.03
0.35	78	-0.1899	0.2383	0.0302
0.45	66	0.0235	0.2312	0.03
0.45	78	-0.1544	0.2409	0.0302
0.45	282	-0.5794	0.2045	0.0322
0.55	270	-0.1484	0.2431	0.0301
0.55	282	-0.3056	0.2427	0.0306
0.65	258	0.3733	0.208	0.0309
0.65	270	-0.0565	0.204	0.03
0.65	282	0.1541	0.2227	0.0302
0.75	90	0.1083	0.2455	0.0301
0.75	102	-0.0874	0.2173	0.0301
0.75	114	-0.1385	0.2306	0.0301
0.75	234	0.065	0.2514	0.03
0.75	246	0.0564	0.2258	0.03
0.75	258	0.1317	0.2054	0.0301
0.75	270	0.2256	0.1678	0.0303
0.75	282	0.2232	0.1723	0.0303
0.85	78	-0.2109	0.2169	0.0303
0.85	90	0.269	0.1747	0.0305
0.85	102	0.0295	0.1685	0.03
0.85	114	-0.0649	0.1557	0.03
0.85	126	-0.018	0.1867	0.03
0.85	138	-0.0151	0.2151	0.03
0.85	234	0.0328	0.2349	0.03
0.85	246	-0.2082	0.2079	0.0303
0.85	258	-0.0356	0.1677	0.03
0.85	270	-0.0187	0.2011	0.03
0.85	282	-0.2241	0.1772	0.0303
0.85	294	0.0094	0.2398	0.03
0.95	90	0.1323	0.2128	0.0301
0.95	102	0.0047	0.1988	0.03
0.95	114	0.0922	0.1985	0.0301
0.95	126	0.2054	0.229	0.0303
0.95	138	-0.184	0.2435	0.0302
0.95	150	-0.1444	0.2641	0.0301
0.95	234	0.0482	0.2327	0.03
0.95	246	0.1007	0.2378	0.0301
0.95	258	-0.262	0.1939	0.0305
0.95	270	0.2454	0.2193	0.0304