CLAS Physics Database

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Measurement E151M1438

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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 :	0.0171 GeV²
W :	1235 GeV
ε :	0.9489
E_beam :	1.3383 GeV
ε_L:	0.1308

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
0.55	246	-1.1725	0.6485	0.0745
0.55	258	-0.3411	0.6115	0.036
0.55	270	-0.3364	0.6697	0.0358
0.55	282	-0.0776	0.6542	0.0303
0.65	234	0.2343	0.7869	0.0329
0.65	246	0.1034	0.5673	0.0306
0.65	258	-0.1024	0.5193	0.0306
0.65	270	0.4046	0.5457	0.0381
0.75	150	0.6292	0.7637	0.0473
0.75	162	-0.6126	0.8611	0.0466
0.75	186	0.4915	0.841	0.0414
0.75	198	-0.1762	0.9403	0.0317
0.75	234	-0.7547	0.4838	0.0532
0.75	246	0.2103	0.5445	0.0324
0.75	258	0.2806	0.5573	0.0341
0.75	270	0.399	0.6596	0.0379
0.85	138	-0.6517	0.7791	0.0483
0.85	150	-0.4325	0.8173	0.0391
0.85	162	0.3061	0.687	0.0349
0.85	174	-0.3325	0.6913	0.0357
0.85	186	-0.7088	0.6409	0.051
0.85	234	1.4976	0.3742	0.0921
0.85	246	-1.1493	0.455	0.0733
0.85	258	-1.7304	1.7304	0.105
0.45	270	1.1934	0.5182	0.0776
0.55	246	-0.0163	0.5106	0.03
0.55	258	0.6102	0.4419	0.0473
0.55	270	-0.152	0.47	0.0314
0.55	282	0.3369	0.5888	0.0362
0.65	246	-0.1773	0.4239	0.0318
0.65	258	0.0652	0.3758	0.0303
0.65	270	0.1575	0.415	0.0314
0.65	282	0.4243	0.5465	0.0393
0.75	150	-0.0854	0.5896	0.0304
0.75	162	0.7441	0.4976	0.0537
0.75	174	-0.6256	0.5865	0.048
0.75	186	-0.1859	0.6035	0.032
0.75	198	-0.3699	0.6102	0.0373
0.75	210	-0.8264	0.6024	0.0579
0.75	234	0.6766	0.4765	0.0504
0.75	246	-0.2446	0.3818	0.0334
0.75	258	0.1595	0.3682	0.0315
0.75	270	-0.3914	0.4356	0.0381
0.85	138	0.8464	0.6277	0.0589
0.85	150	0.301	0.5995	0.035
0.85	162	-0.2882	0.4956	0.0346
0.85	174	-0.2156	0.5354	0.0327
0.85	186	0.2331	0.5425	0.0331
0.85	198	0.4426	0.5931	0.04
0.85	234	-0.8294	0.5158	0.0581
0.85	246	-0.4027	0.4634	0.0385
0.85	258	0.0503	0.5936	0.0302