CLAS Physics Database

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Measurement E151M1294

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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 :	1295 GeV
ε :	0.8393
E_beam :	1.0539 GeV
ε_L:	0.1748

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	-1.2998	0.7468	0.1496
0.25	54	-1.027	0.8214	0.1197
0.35	30	-0.7834	0.7164	0.0933
0.35	42	-0.3466	0.7193	0.0493
0.45	30	-0.4455	0.8569	0.0585
0.45	42	0.2749	0.6826	0.0431
0.45	270	-0.7728	0.614	0.0922
0.55	246	0.0444	0.492	0.0304
0.55	258	0.0381	0.476	0.0303
0.55	270	-0.3927	0.4729	0.0535
0.55	282	-0.4538	0.7574	0.0593
0.65	138	0.4278	0.7692	0.0568
0.65	150	0.6676	0.8396	0.081
0.65	222	0.922	0.7204	0.1082
0.65	234	0.6691	0.5298	0.0812
0.65	246	-0.2282	0.4606	0.0395
0.65	258	0.6025	0.4021	0.0743
0.65	270	0.4666	0.4241	0.0606
0.65	282	0.5151	0.5676	0.0654
0.75	126	-0.6812	0.8178	0.0825
0.75	138	0.2391	0.6424	0.0403
0.75	150	1.2157	0.5579	0.1404
0.75	162	0.1136	0.5155	0.0326
0.75	174	0.0734	0.5878	0.0311
0.75	186	0.0678	0.6264	0.031
0.75	198	-0.5758	0.7674	0.0715
0.75	210	-0.6085	0.7185	0.0749
0.75	222	-0.3727	0.6435	0.0516
0.75	234	-0.0944	0.5459	0.0318
0.75	246	0.4843	0.4096	0.0623
0.75	258	0.0708	0.3729	0.031
0.75	270	-0.4353	0.4235	0.0575
0.75	282	-0.1907	0.5048	0.0369
0.85	126	-0.5381	0.7451	0.0677
0.85	138	0.5652	0.5848	0.0705
0.85	150	0.5968	0.488	0.0737
0.85	162	0.273	0.5883	0.043
0.85	174	0.3288	0.5205	0.0477
0.85	186	0.3431	0.6266	0.049
0.85	198	-0.0782	0.6606	0.0313
0.85	222	-0.1571	0.6447	0.0348
0.85	234	0.6202	0.4815	0.0761
0.85	246	0.5105	0.3997	0.0649
0.85	258	0.6419	0.3822	0.0784
0.85	270	-0.4742	0.3888	0.0613
0.85	282	1.463	0.514	0.1677
0.95	114	0.4576	0.5952	0.0597
0.95	138	-0.3363	0.587	0.0484
0.95	150	-0.0313	0.592	0.0302
0.95	162	0.322	0.6392	0.0471
0.95	186	0.3816	0.5612	0.0525
0.95	246	-0.8185	0.5022	0.0971