CLAS Physics Database

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Measurement E151M1428

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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_LL,

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

Q² :	0.0593 GeV²
W :	1205 GeV
ε :	0.939
E_beam :	1.3383 GeV
ε_L:	0.4923

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LL,
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_LL	Stat. error	Syst. error
0.55	270	-1.1179	0.409	0.0734
0.55	282	-0.1878	0.4487	0.032
0.65	270	-0.413	0.4462	0.0389
0.65	282	-0.3378	0.5285	0.0362
0.75	246	0.5047	0.6107	0.0426
0.75	258	0.1123	0.5344	0.0307
0.75	270	0.3087	0.4814	0.0352
0.75	282	0.4424	0.6161	0.04
0.85	126	-1.1547	0.5824	0.0754
0.85	138	-1.5394	0.4784	0.097
0.85	150	0.9871	0.5711	0.0663
0.85	162	-0.1103	0.58	0.0307
0.85	174	-0.4393	0.5793	0.0399
0.85	198	-0.7891	0.5697	0.056
0.85	210	-0.9867	0.5603	0.0663
0.85	258	0.3647	0.5456	0.0371
0.85	270	0.4728	0.508	0.0413
0.95	126	-0.2346	0.5146	0.0331
0.95	150	0.8582	0.5036	0.0595
0.95	162	0.7812	0.495	0.0556
0.95	174	0.7385	0.4624	0.0535
0.95	186	-0.0702	0.4837	0.0303
0.95	198	0.4374	0.4297	0.0398
0.45	282	-0.1679	0.7536	0.0315
0.55	270	-0.439	0.7621	0.0394
0.55	282	0.4054	0.6471	0.0382
0.65	258	-1.2785	0.5136	0.0802
0.65	270	0.4699	0.591	0.0406
0.65	282	-0.1239	0.7399	0.0309
0.75	258	-1.0757	0.4002	0.0694
0.75	270	0.8242	0.529	0.0565
0.75	282	0.5238	0.8148	0.0428
0.85	126	0.6975	0.6597	0.0504
0.85	138	0.9218	0.5153	0.0614
0.85	150	0.882	0.6752	0.0594
0.85	162	-0.3713	0.7287	0.037
0.85	174	-0.5081	0.6639	0.0421
0.85	186	-1.0959	0.5691	0.0704
0.85	210	-0.2163	0.728	0.0325
0.95	138	-0.6006	0.5332	0.046
0.95	150	-0.4292	0.6582	0.039
0.95	162	-0.2781	0.5825	0.0341
0.95	174	1.1534	0.4639	0.0735
0.95	186	-0.46	0.74	0.0402
0.95	198	0.7225	0.6941	0.0516
0.95	210	0.0203	0.6643	0.03