CLAS Physics Database

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Measurement E151M3342

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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 :	1625 GeV
ε :	0.8494
E_beam :	2.2596 GeV
ε_L:	0.0631

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	78	0.0429	0.2522	0.03
0.45	270	0.1682	0.2188	0.0302
0.45	282	-0.3772	0.2404	0.0309
0.55	126	-0.0864	0.2557	0.03
0.55	222	0.208	0.2528	0.0303
0.55	270	0.0847	0.2463	0.03
0.55	282	0.1019	0.2331	0.0301
0.65	126	-0.2554	0.2404	0.0304
0.65	138	0.1142	0.261	0.0301
0.65	210	0.1389	0.256	0.0301
0.65	222	0.0434	0.2222	0.03
0.65	294	0.0843	0.2365	0.03
0.75	210	-0.2622	0.2571	0.0305
0.75	222	-0.017	0.2434	0.03
0.75	234	0.2706	0.2334	0.0305
0.75	246	0.0174	0.2562	0.03
0.75	270	-0.1336	0.232	0.0301
0.75	282	0.1822	0.1812	0.0302
0.75	294	0.0653	0.2037	0.03
0.85	102	-0.0586	0.2313	0.03
0.85	114	0.0325	0.2023	0.03
0.85	126	-0.2109	0.2202	0.0303
0.85	186	-0.0453	0.2642	0.03
0.85	210	0.1524	0.1934	0.0302
0.85	222	-0.2816	0.2148	0.0305
0.85	234	0.0988	0.2551	0.0301
0.35	78	0.081	0.2633	0.03
0.35	282	-0.1648	0.2415	0.0302
0.45	126	-0.4196	0.2204	0.0312
0.45	270	0.3588	0.2369	0.0308
0.55	114	-0.2838	0.2469	0.0305
0.55	258	-0.0913	0.2566	0.0301
0.55	270	-0.0324	0.2354	0.03
0.55	282	-0.2311	0.2523	0.0304
0.65	114	-0.0705	0.2358	0.03
0.65	126	-0.6741	0.1976	0.0329
0.65	138	0.0911	0.2312	0.0301
0.65	222	-0.0766	0.2387	0.03
0.65	234	0.221	0.2523	0.0303
0.65	282	0.2212	0.2489	0.0303
0.65	294	-0.1745	0.2303	0.0302
0.75	66	0.0911	0.2447	0.0301
0.75	126	0.1448	0.2336	0.0301
0.75	198	0.7476	0.1739	0.0335
0.75	210	0.0562	0.2153	0.03
0.75	222	-0.3973	0.231	0.031
0.75	234	0.4055	0.2159	0.0311
0.75	270	0.0986	0.249	0.0301
0.75	282	0.0615	0.2384	0.03
0.75	294	-0.2958	0.2318	0.0306
0.85	102	0.1303	0.2029	0.0301
0.85	114	0.1311	0.2348	0.0301
0.85	198	0.0345	0.2199	0.03
0.85	210	0.2066	0.2403	0.0303
0.85	222	-0.31	0.2134	0.0306
0.85	234	0.3597	0.1855	0.0309
0.85	246	-0.3562	0.2313	0.0308
0.85	258	0.1026	0.2511	0.0301
0.95	234	-0.1332	0.2474	0.0301