CLAS Physics Database

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Measurement E151M2562

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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 :	0.0707 GeV²
W :	1355 GeV
ε :	0.7364
E_beam :	1.0539 GeV
ε_L:	0.1742

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	42	0.0079	0.2367	0.03
0.35	30	0.1321	0.2317	0.0301
0.35	42	0.1128	0.2229	0.0301
0.45	42	-0.7561	0.1851	0.0336
0.45	258	-0.3146	0.2497	0.0307
0.55	234	-0.0643	0.2605	0.03
0.55	246	0.0005	0.2268	0.03
0.55	258	-0.2438	0.1674	0.0304
0.55	270	0.207	0.1882	0.0303
0.65	138	-0.1058	0.2646	0.0301
0.65	150	0.0052	0.2381	0.03
0.65	234	-0.0018	0.182	0.03
0.65	246	-0.1441	0.1602	0.0301
0.65	258	0.0497	0.1387	0.03
0.65	270	-0.4547	0.2021	0.0313
0.75	138	0.1719	0.2236	0.0302
0.75	150	0.162	0.1739	0.0302
0.75	162	0.0959	0.1886	0.0301
0.75	174	-0.1843	0.2076	0.0302
0.75	198	0.0414	0.229	0.03
0.75	234	-0.1898	0.1626	0.0302
0.75	246	-0.2514	0.1501	0.0304
0.75	258	-0.0416	0.1517	0.03
0.75	270	-0.148	0.1518	0.0301
0.85	126	-0.0886	0.2469	0.0301
0.85	138	-0.4512	0.1829	0.0313
0.85	150	0.2177	0.1958	0.0303
0.85	162	-0.1834	0.1901	0.0302
0.85	174	0.0418	0.1991	0.03
0.85	186	-0.3749	0.1987	0.0309
0.85	198	-0.1802	0.2473	0.0302
0.85	234	-0.0633	0.1865	0.03
0.85	246	-0.2042	0.147	0.0303
0.85	258	-0.0945	0.1505	0.0301
0.85	270	0.001	0.1381	0.03
0.85	282	0.0184	0.1909	0.03
0.95	102	-0.2345	0.2489	0.0304
0.95	114	0.2485	0.2541	0.0304
0.95	138	0.4368	0.2203	0.0312
0.95	174	0.1233	0.2581	0.0301
0.95	234	-0.2748	0.2199	0.0305
0.95	246	-0.1176	0.2501	0.0301
0.95	258	-0.1676	0.1908	0.0302
0.95	270	-0.219	0.1966	0.0303