CLAS Physics Database

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Measurement E151M1618

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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 :	0.0707 GeV²
W :	1505 GeV
ε :	0.6863
E_beam :	1.3383 GeV
ε_L:	0.0807

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	126	0.3077	0.7398	0.0352
0.55	138	0.9256	0.5595	0.0668
0.55	150	-1.8429	0.7357	0.1145
0.55	162	-1.509	0.8353	0.0953
0.55	222	0.3758	0.6282	0.0382
0.55	234	-0.9864	0.5012	0.0656
0.55	246	0.1617	0.6127	0.0407
0.65	126	-0.4256	0.7083	0.0394
0.65	138	0.0473	0.6856	0.0301
0.65	150	-0.2222	0.7918	0.0328
0.65	210	-0.1341	0.78	0.0311
0.65	222	0.2995	0.7188	0.035
0.65	234	-0.2121	0.6152	0.0326
0.65	246	-1.3102	0.5262	0.0841
0.65	258	0.961	0.8137	0.0649
0.75	126	-0.8226	0.6498	0.0577
0.75	138	-0.4076	0.6	0.0387
0.75	150	-0.7202	0.7199	0.0526
0.75	210	-1.5303	0.6924	0.0965
0.75	222	-0.6578	0.6893	0.0495
0.75	234	-0.0012	0.5372	0.03
0.75	246	-0.7236	0.589	0.0527
0.75	258	0.943	0.6487	0.064
0.85	150	-0.2688	0.7795	0.0341
0.85	222	0.1384	0.6844	0.0311
0.85	234	0.2822	0.7548	0.0344
0.85	246	-0.2401	0.5361	0.0333
0.85	258	-1.0259	0.6809	0.0684
0.95	126	0.2277	0.6138	0.033
0.95	138	0.5931	0.6891	0.0465
0.95	246	-0.8089	0.6427	0.057
0.55	258	1.5944	0.8062	0.0974
0.65	138	-0.4375	1.1097	0.0393
0.65	150	0.6825	0.7878	0.0498
0.65	210	-1.2208	0.7875	0.0771
0.65	222	0.0686	0.752	0.0303
0.65	234	-0.2004	0.8699	0.0322
0.65	246	0.0234	0.9194	0.03
0.75	138	-2.0243	0.6046	0.1215
0.75	150	-1.3173	1.0028	0.0823
0.75	222	-0.0715	0.8485	0.0303
0.75	234	-0.7765	0.8525	0.0542
0.75	246	0.0716	0.6722	0.0303
0.75	258	0.6051	0.7822	0.0462
0.85	126	-0.1879	0.9757	0.0319
0.85	222	0.0876	0.9252	0.0304
0.85	234	-0.0971	0.6611	0.0305
0.85	246	0.023	0.7408	0.03
0.85	258	0.3119	0.8093	0.0351
0.95	246	-0.1821	0.8973	0.0318