CLAS Physics Database

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Measurement E151M1907

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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 :	0.0415 GeV²
W :	1655 GeV
ε :	0.7836
E_beam :	1.9889 GeV
ε_L:	0.0318

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
0.35	78	-2.8347	2.8347	0.1744
0.35	270	0.6738	0.6998	0.0507
0.45	90	0.8282	0.882	0.0585
0.45	126	-1.4922	0.8065	0.0953
0.45	258	0.3794	0.7031	0.0378
0.45	270	-0.575	0.7583	0.046
0.45	282	-0.7678	0.7394	0.0554
0.55	114	0.3501	0.8832	0.0367
0.55	126	-1.1775	0.7565	0.0774
0.55	138	-0.3811	0.7865	0.0379
0.55	210	0.3477	0.7162	0.0367
0.55	222	0.7495	0.7108	0.0544
0.55	258	-1.9293	0.639	0.1207
0.55	270	-0.3283	0.5389	0.036
0.55	282	-0.6801	0.7819	0.051
0.55	318	-0.6528	0.8219	0.0496
0.65	114	1.0442	0.7269	0.07
0.65	126	0.236	0.6465	0.0332
0.65	138	0.8302	0.6398	0.0586
0.65	150	1.0008	0.7762	0.0677
0.65	198	-1.6793	0.6522	0.1061
0.65	210	0.058	0.7511	0.0302
0.65	222	-1.4404	0.5668	0.0923
0.65	270	0.6145	0.7902	0.0478
0.65	282	-0.1194	0.6722	0.0309
0.75	66	-0.416	0.6926	0.0392
0.75	78	1.2788	0.7733	0.0831
0.75	138	-1.7914	0.6862	0.1126
0.75	198	0.0589	0.7251	0.0302
0.75	210	-0.733	0.6997	0.0536
0.75	222	0.1363	0.6308	0.0311
0.75	234	-0.3291	0.802	0.036
0.75	258	-0.5962	0.6278	0.047
0.75	270	0.6805	0.5379	0.051
0.75	282	0.2925	0.5667	0.0348
0.75	294	-0.9325	0.6298	0.064
0.85	114	0.3517	0.6285	0.0368
0.85	126	1.304	0.58	0.0845
0.85	138	-0.6314	0.8131	0.0486
0.85	150	0.0702	0.8305	0.0303
0.85	210	-0.0291	0.602	0.0301
0.85	222	0.5647	0.6662	0.0455
0.85	234	0.1567	0.6588	0.0315
0.85	246	-2.1442	2.1442	0.1333
0.85	258	-0.2879	0.747	0.0347
0.85	270	-0.3774	0.755	0.0377
0.85	282	0.676	0.7639	0.0508