CLAS Physics Database

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Measurement E151M1357

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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 :	0.0348 GeV²
W :	1385 GeV
ε :	0.7343
E_beam :	1.0539 GeV
ε_L:	0.0782

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
0.25	42	1.0019	0.6919	0.1169
0.25	54	1.6317	0.7289	0.1865
0.35	30	1.0051	0.9732	0.1173
0.35	42	-0.1263	0.6703	0.0332
0.35	54	1.596	0.7154	0.1825
0.45	18	1.3706	0.966	0.1575
0.45	30	-0.5841	0.7282	0.0724
0.45	42	-0.5024	0.7126	0.0641
0.45	54	-1.4141	0.6632	0.1623
0.45	258	-0.1752	0.9657	0.0359
0.55	42	-0.0134	0.7594	0.03
0.55	54	-0.9296	0.8313	0.1091
0.55	150	-0.963	0.9526	0.1127
0.55	222	0.6823	0.9421	0.0826
0.55	234	0.0937	0.7457	0.0318
0.55	246	0.2919	0.6349	0.0445
0.55	258	-0.339	0.5935	0.0486
0.55	270	-1.3587	0.805	0.1562
0.65	138	0.33	0.8881	0.0478
0.65	150	-0.2955	0.9078	0.0448
0.65	162	-0.6488	0.8493	0.0791
0.65	174	1.3648	0.8982	0.1568
0.65	186	0.2596	0.9527	0.0419
0.65	222	0.8268	0.6762	0.098
0.65	234	-0.0283	0.5228	0.0302
0.65	246	-0.1867	0.5307	0.0367
0.65	258	0.3168	0.6076	0.0467
0.65	270	-0.7549	0.7821	0.0903
0.75	138	0.6648	0.7284	0.0808
0.75	150	0.9736	0.7641	0.1138
0.75	162	0.3377	0.6472	0.0485
0.75	174	0.6739	0.7859	0.0817
0.75	222	-0.3698	0.7613	0.0514
0.75	234	0.1368	0.5234	0.0337
0.75	246	0.3107	0.5314	0.0461
0.75	258	-0.2684	0.4866	0.0426
0.75	270	-0.1381	0.6729	0.0338
0.85	150	1.3739	0.9106	0.1578
0.85	162	0.8317	0.9425	0.0985
0.85	174	-0.6535	0.8249	0.0796
0.85	210	-1.2245	0.829	0.1413
0.85	222	0.3835	0.7252	0.0526
0.85	234	0.7775	0.5382	0.0927
0.85	246	-0.7811	0.5143	0.0931
0.85	258	0.2213	0.5348	0.039
0.85	270	0.8389	0.5855	0.0993
0.95	126	-0.6043	0.7601	0.0745
0.95	234	0.3132	0.7488	0.0463
0.95	246	0.0993	0.6095	0.032
0.95	258	0.9149	0.6607	0.1075