CLAS Physics Database

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Measurement E151M1317

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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 :	0.0496 GeV²
W :	1325 GeV
ε :	0.7983
E_beam :	1.0539 GeV
ε_L:	0.163

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
0.15	42	-1.2608	0.8955	0.1453
0.25	42	0.7084	0.955	0.0853
0.35	30	0.1454	0.7504	0.0342
0.35	42	-0.0527	0.7588	0.0306
0.45	42	0.925	0.6752	0.1086
0.45	258	0.9298	0.815	0.1091
0.45	270	0.7974	0.7804	0.0948
0.55	234	0.425	0.7858	0.0565
0.55	246	-0.5396	0.6267	0.0679
0.55	258	0.2067	0.6134	0.038
0.55	270	1.4937	0.6374	0.1711
0.55	282	0.5442	0.7905	0.0683
0.65	150	-1.306	0.8389	0.1503
0.65	162	1.254	0.8264	0.1446
0.65	222	0.1802	0.8189	0.0362
0.65	234	-0.0511	0.6201	0.0305
0.65	246	-0.0904	0.4961	0.0317
0.65	258	0.174	0.4916	0.0359
0.65	270	-0.1334	0.6693	0.0336
0.75	126	-0.656	0.7822	0.0798
0.75	138	0.4748	0.6492	0.0614
0.75	150	0.9678	0.6033	0.1132
0.75	162	-0.2434	0.6257	0.0407
0.75	174	1.0718	0.7243	0.1246
0.75	186	1.2892	0.7201	0.1485
0.75	222	0.5237	0.7166	0.0662
0.75	234	0.0385	0.5131	0.0303
0.75	246	0.5853	0.4375	0.0725
0.75	258	-0.4992	0.4496	0.0638
0.75	270	-0.118	0.4705	0.0328
0.75	282	-1.1238	0.8157	0.1303
0.85	126	-0.4236	0.7707	0.0564
0.85	138	0.1683	0.6062	0.0355
0.85	150	0.5283	0.5457	0.0667
0.85	162	-0.0698	0.7235	0.031
0.85	174	-0.541	0.6581	0.068
0.85	186	0.6533	0.6848	0.0796
0.85	222	0.0147	0.7577	0.03
0.85	234	-0.3208	0.6022	0.047
0.85	246	0.3825	0.5035	0.0525
0.85	258	0.0772	0.4037	0.0312
0.85	270	-0.2348	0.4286	0.04
0.85	282	0.1488	0.5351	0.0344
0.95	174	0.2132	0.6854	0.0384
0.95	186	0.5017	0.6407	0.064
0.95	258	1.0246	0.4981	0.1194