CLAS Physics Database

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Measurement E151M2524

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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 :	1295 GeV
ε :	0.7055
E_beam :	1.0539 GeV
ε_L:	0.4546

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	270	-0.1088	0.2081	0.0301
0.55	258	0.3368	0.2335	0.0307
0.55	270	0.2083	0.2352	0.0303
0.55	282	-0.0342	0.2339	0.03
0.65	246	0.2707	0.233	0.0305
0.65	258	-0.1838	0.2123	0.0302
0.65	270	0.3275	0.2022	0.0307
0.65	282	0.1684	0.2128	0.0302
0.75	126	0.3943	0.2376	0.031
0.75	138	0.2889	0.2411	0.0306
0.75	246	0.5634	0.2045	0.032
0.75	258	-0.3023	0.1994	0.0306
0.75	270	-0.3074	0.2425	0.0306
0.75	282	-0.3479	0.2184	0.0308
0.85	114	-0.1541	0.2364	0.0302
0.85	126	-0.2052	0.1849	0.0303
0.85	138	-0.0698	0.2438	0.03
0.85	150	0.3741	0.2018	0.0309
0.85	162	-0.1134	0.2457	0.0301
0.85	246	-0.0303	0.2432	0.03
0.85	258	0.3754	0.2022	0.0309
0.85	270	-0.4568	0.1713	0.0314
0.85	282	0.2068	0.2096	0.0303
0.85	294	-0.24	0.2212	0.0304
0.95	126	-0.3277	0.2521	0.0307
0.95	138	0.0974	0.2223	0.0301
0.95	150	-0.0041	0.2493	0.03
0.95	174	0.1428	0.2532	0.0301
0.95	186	-0.7406	0.1959	0.0335
0.95	198	0.0107	0.2593	0.03
0.95	258	-0.1321	0.26	0.0301