CLAS Physics Database

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Measurement E151M2264

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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 :	0.348 GeV²
W :	1475 GeV
ε :	0.9185
E_beam :	2.999 GeV
ε_L:	0.4169

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
0.05	54	-0.0695	0.7725	0.0304
0.05	66	1.3057	0.8211	0.0993
0.15	54	0.3573	0.923	0.0396
0.15	66	0.3649	0.7666	0.04
0.15	294	0.6934	0.6793	0.0585
0.25	66	0.0919	0.8452	0.0307
0.25	282	-0.4486	0.8025	0.0443
0.25	294	0.123	0.7918	0.0313
0.35	54	0.3009	0.9323	0.0371
0.35	282	-0.5545	0.6229	0.0502
0.35	294	-0.221	0.6936	0.034
0.45	90	-1.6912	0.7584	0.1263
0.45	102	1.4193	0.6322	0.1072
0.45	270	0.1269	0.9925	0.0314
0.45	282	0.3374	0.8501	0.0387
0.45	294	-0.0007	0.7445	0.03
0.45	306	-0.6366	0.8549	0.0551
0.55	78	-1.1093	0.691	0.0858
0.55	90	0.1386	0.5952	0.0316
0.55	102	1.7742	0.631	0.1321
0.55	114	-0.9702	0.835	0.0765
0.55	258	-0.0678	0.8288	0.0304
0.55	270	-0.5071	0.859	0.0475
0.55	282	-0.7155	0.8716	0.0599
0.55	306	0.5299	0.705	0.0487
0.65	54	0.8781	0.839	0.0704
0.65	78	-0.0134	0.6435	0.03
0.65	90	-0.1392	0.5419	0.0317
0.65	102	-0.6675	0.6449	0.0569
0.65	114	1.29	0.7916	0.0982
0.65	126	0.6166	0.7363	0.0538
0.65	234	-0.3292	0.9377	0.0383
0.65	246	-0.0206	0.6618	0.03
0.65	258	0.8185	0.6296	0.0665
0.65	270	0.2699	0.7552	0.0358
0.75	54	-1.2773	0.5977	0.0974
0.75	66	-2.1944	0.7166	0.1619
0.75	78	-0.7377	0.6108	0.0613
0.75	90	0.5464	0.5252	0.0497
0.75	102	0.1743	0.495	0.0326
0.75	114	-0.6828	0.5989	0.0579
0.75	126	-0.4263	0.6633	0.0431
0.75	138	-0.8783	0.8983	0.0704
0.75	222	0.9534	0.7812	0.0754
0.75	234	0.8824	0.5828	0.0707
0.75	246	-0.3095	0.6437	0.0375
0.75	258	0.8885	0.5835	0.0711
0.75	270	1.0807	0.6527	0.0839
0.75	282	0.4566	0.6345	0.0447
0.85	54	-0.259	0.6048	0.0354
0.85	66	0.1855	0.6817	0.0329
0.85	90	0.617	0.6877	0.0539
0.85	102	0.0537	0.5153	0.0303
0.85	114	0.1772	0.5969	0.0326
0.85	126	-0.549	0.8767	0.0498
0.85	198	-2.0684	0.7617	0.153
0.85	210	0.3762	0.7692	0.0405
0.85	222	0.4057	0.645	0.042
0.85	234	1.1566	0.4807	0.0891
0.85	246	-0.6573	0.5561	0.0563
0.85	258	-0.1091	0.4993	0.031
0.85	270	0.6119	0.4899	0.0536
0.85	282	0.4422	0.5301	0.0439
0.85	294	-0.2427	0.6482	0.0348
0.85	306	0.8263	0.5993	0.067
0.85	318	0.6429	0.8343	0.0554
0.95	66	0.1804	0.7969	0.0327
0.95	102	-0.1198	0.8772	0.0312
0.95	114	1.8106	0.7848	0.1347
0.95	186	0.5251	0.8603	0.0485
0.95	198	-0.338	0.8148	0.0387
0.95	210	0.2649	0.8232	0.0356
0.95	222	-1.3169	0.6552	0.1001
0.95	234	0.1365	0.604	0.0316
0.95	246	0.0635	0.5862	0.0304
0.95	258	0.3095	0.6012	0.0375
0.95	270	0.4634	0.5544	0.045
0.95	282	-0.0096	0.5498	0.03
0.95	294	0.0637	0.5164	0.0304
0.95	306	-0.0292	0.5405	0.0301
0.95	318	1.9854	0.5204	0.1471
0.95	330	0.3467	0.7178	0.0391