CLAS Physics Database

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Measurement E151M743

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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_UL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.101 GeV²
W :	1265 GeV
ε :	0.9655
E_beam :	2.2596 GeV
ε_L:	0.5095

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_UL,
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_UL	Stat. error	Syst. error
0.25	66	-0.3584	0.3663	0.0416
0.35	66	0.0841	0.2946	0.0336
0.35	78	0.0302	0.3615	0.0408
0.45	66	0.0613	0.3302	0.0321
0.45	78	-0.2312	0.2969	0.0362
0.45	90	0.8015	0.4991	0.0655
0.55	66	2.1068	1.9929	0.1967
0.55	78	-2.17	1.3504	0.2025
0.55	270	-0.0958	1.5411	0.0313
0.55	282	-0.5261	1.3792	0.0571
0.65	78	-0.9344	1.732	0.0913
0.65	258	0.5268	1.257	0.0571
0.65	270	-1.0231	1.0153	0.0991
0.65	282	-1.9045	1.0083	0.1783
0.75	102	0.1967	2.1635	0.0351
0.75	114	-1.5592	1.6391	0.147
0.75	126	-2.0916	2	0.1954
0.75	246	-2.087	1.1142	0.1949
0.75	258	-0.4083	1.1197	0.0482
0.75	270	0.7831	1.0947	0.0783
0.75	282	0.4732	1.5458	0.053
0.85	90	1.2613	2.0981	0.1202
0.85	102	-1.9323	1.4967	0.1808
0.85	114	1.6881	1.5913	0.1587
0.85	126	3.7159	2.1734	0.3443
0.85	138	-0.5072	1.7489	0.0556
0.85	150	1.9656	2.1321	0.1839
0.85	162	1.6754	2.4538	0.1575
0.85	234	0.0905	1.8331	0.0311
0.85	246	0.2287	1.6371	0.0367
0.85	258	1.1809	1.4074	0.113
0.85	270	-0.974	1.1733	0.0948
0.85	282	3.0233	1.756	0.2806
0.95	102	-2.9196	5.1894	0.2711
0.95	114	7.4482	6.1893	0.6881
0.95	126	3.0286	5.2834	0.2811
0.95	138	-7.8883	4.088	0.7287
0.95	150	-1.1951	5.7534	0.1143
0.95	162	6.9841	6.3049	0.6453
0.95	186	-4.3863	5.9141	0.4059
0.95	234	1.2013	5.5268	0.1149
0.95	246	7.945	5.777	0.7339
0.95	270	-9.7967	4.2358	0.9047
0.45	270	-0.0788	0.4919	0.0304
0.45	282	0.5546	0.4758	0.0472
0.45	294	0.4093	0.4267	0.0403
0.55	66	0.0331	0.4036	0.0301
0.55	78	0.2241	0.329	0.0334
0.55	90	-0.4093	0.4329	0.0403
0.55	270	-0.1119	0.3963	0.0309
0.55	282	-0.9558	0.3149	0.0695
0.65	258	0.6705	0.3842	0.0533
0.65	270	0.1992	0.3246	0.0327
0.65	282	-0.0948	0.311	0.0306
0.75	90	0.0549	0.397	0.0302
0.75	102	0.5805	0.383	0.0485
0.75	114	0.1865	0.4224	0.0324
0.75	126	0.3169	0.5059	0.0365
0.75	246	0.1952	0.459	0.0326
0.75	258	-0.2574	0.2827	0.0344
0.75	270	-0.2687	0.2833	0.0348
0.75	282	-0.1638	0.3068	0.0319
0.85	90	0.9795	0.403	0.0709
0.85	102	0.0147	0.3554	0.03
0.85	114	-0.7162	0.31	0.0558
0.85	126	0.4692	0.3637	0.043
0.85	138	-0.0089	0.3958	0.03
0.85	150	-0.2689	0.519	0.0348
0.85	234	-1.1411	0.4024	0.0807
0.85	246	-0.3101	0.3296	0.0362
0.85	258	1.035	0.3744	0.0742
0.85	270	0.0968	0.305	0.0307
0.85	282	0.7737	0.4313	0.059
0.95	102	0.1264	0.725	0.0311
0.95	114	-0.8184	0.5942	0.0615
0.95	126	1.1154	0.6601	0.0791
0.95	138	0.8034	0.7163	0.0607
0.95	150	-1.0673	0.6083	0.0762
0.95	162	-0.1641	0.7495	0.0319
0.95	174	-1.9292	0.6867	0.1301
0.95	186	1.0998	0.976	0.0782
0.95	198	1.6094	1.0319	0.1098
0.95	234	-0.3249	0.9107	0.0368
0.95	246	-0.2991	0.7426	0.0359
0.95	258	-0.605	0.6926	0.0498
0.95	270	-0.47	0.7802	0.043