CLAS Physics Database

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Measurement E151M1359

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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 :	1385 GeV
ε :	0.7168
E_beam :	1.0539 GeV
ε_L:	0.1059

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	1.2314	0.8641	0.1421
0.25	54	-0.3354	1.0388	0.0483
0.35	30	0.1927	1.0098	0.037
0.35	42	0.7781	0.6366	0.0927
0.35	54	2.2896	0.6939	0.26
0.45	30	0.5477	0.8151	0.0687
0.45	42	0.3079	0.7818	0.0459
0.45	54	-1.6621	0.9119	0.1898
0.45	246	1.7621	0.9086	0.201
0.55	42	-1.3069	0.9399	0.1504
0.55	234	-0.2773	0.6466	0.0433
0.55	246	0.1521	0.6447	0.0346
0.55	258	-0.2017	0.5983	0.0377
0.65	138	0.2111	0.8178	0.0383
0.65	150	0.4016	0.8432	0.0543
0.65	162	1.1616	0.8523	0.1344
0.65	174	-1.8645	0.8605	0.2124
0.65	222	-0.1807	0.7021	0.0363
0.65	234	0.566	0.6419	0.0705
0.65	246	0.1375	0.5733	0.0338
0.65	258	-0.2588	0.5369	0.0419
0.65	270	-0.5823	0.6745	0.0722
0.75	126	-0.2824	1.0306	0.0438
0.75	138	1.7717	0.6854	0.2021
0.75	150	-0.2472	0.7028	0.041
0.75	162	0.6981	0.7861	0.0843
0.75	210	0.1517	0.9597	0.0345
0.75	222	-0.1129	0.6977	0.0326
0.75	234	0.6006	0.6507	0.0741
0.75	246	0.275	0.523	0.0432
0.75	258	-0.2746	0.5079	0.0431
0.75	270	1.0265	0.6338	0.1196
0.85	138	1.3596	0.7894	0.1563
0.85	150	0.441	0.8837	0.0581
0.85	162	1.2292	0.8223	0.1419
0.85	174	-0.2662	0.8651	0.0424
0.85	234	0.5689	0.5825	0.0708
0.85	246	-0.0871	0.5116	0.0316
0.85	258	-0.084	0.526	0.0315
0.85	270	-0.2028	0.4653	0.0377
0.95	126	-0.2799	0.8159	0.0436
0.95	234	0.8365	0.6623	0.099
0.95	246	0.2213	0.6443	0.039
0.95	258	0.412	0.5252	0.0553
0.95	270	-0.6807	0.6707	0.0824