CLAS Physics Database

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Measurement E151M3215

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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 :	0.1715 GeV²
W :	1325 GeV
ε :	0.9403
E_beam :	2.2596 GeV
ε_L:	0.5184

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
0.65	270	-0.6865	0.199	0.033
0.75	90	0.259	0.1993	0.0304
0.75	102	-0.1872	0.1959	0.0302
0.75	114	-0.0186	0.2176	0.03
0.75	258	0.3316	0.2089	0.0307
0.75	270	-0.1892	0.2171	0.0302
0.75	282	-0.2765	0.1957	0.0305
0.85	90	-0.3208	0.1735	0.0307
0.85	102	-0.0801	0.208	0.03
0.85	114	-0.0454	0.2235	0.03
0.85	126	-0.1855	0.2086	0.0302
0.85	234	-0.077	0.2425	0.03
0.85	246	-0.4399	0.2286	0.0313
0.85	258	-0.4196	0.1943	0.0312
0.85	270	0.2145	0.2429	0.0303
0.85	282	-0.1696	0.2016	0.0302
0.85	294	-0.4511	0.2375	0.0313
0.95	102	0.2664	0.257	0.0305
0.95	114	0.1713	0.2178	0.0302
0.95	126	0.1729	0.2501	0.0302
0.95	138	0.2582	0.2564	0.0304
0.95	246	-0.04	0.2357	0.03
0.95	258	-0.0856	0.218	0.03
0.95	270	-0.1346	0.2189	0.0301
0.95	282	0.0823	0.1957	0.03
0.95	294	-0.0706	0.2401	0.03
0.15	66	0.077	0.2574	0.03
0.35	66	0.1923	0.2221	0.0302
0.55	282	-0.2111	0.2454	0.0303
0.65	102	0.2462	0.2328	0.0304
0.65	114	0.1373	0.2502	0.0301
0.65	258	-0.6054	0.1816	0.0324
0.65	270	-0.1626	0.2208	0.0302
0.75	90	-0.3319	0.2136	0.0307
0.75	102	0.3122	0.199	0.0306
0.75	114	-0.2183	0.2148	0.0303
0.75	126	0.184	0.2455	0.0302
0.75	246	0.0457	0.2229	0.03
0.75	258	-0.0168	0.2172	0.03
0.75	270	-0.173	0.1709	0.0302
0.75	282	-0.2293	0.2038	0.0303
0.75	294	-0.2096	0.1934	0.0303
0.85	78	-0.2333	0.2528	0.0304
0.85	90	0.1957	0.2163	0.0303
0.85	102	-0.2059	0.199	0.0303
0.85	114	0.087	0.1858	0.0301
0.85	126	0.0855	0.2607	0.03
0.85	234	-0.1983	0.2199	0.0303
0.85	246	-0.2654	0.1899	0.0305
0.85	258	0.0446	0.179	0.03
0.85	270	0.2203	0.1891	0.0303
0.85	282	-0.5116	0.1638	0.0317
0.85	294	-0.1469	0.2182	0.0301
0.95	114	-0.244	0.2377	0.0304
0.95	126	-0.1794	0.232	0.0302
0.95	138	-0.1967	0.2487	0.0303
0.95	222	-0.1124	0.2562	0.0301
0.95	246	0.2523	0.2181	0.0304
0.95	258	0.0776	0.2143	0.03
0.95	270	0.0814	0.2079	0.03
0.95	282	0.2036	0.1845	0.0303
0.95	294	-0.2637	0.2489	0.0305