CLAS Physics Database

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Measurement E151M1314

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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 :	0.0291 GeV²
W :	1325 GeV
ε :	0.82
E_beam :	1.0539 GeV
ε_L:	0.1029

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
0.15	42	1.5616	0.8129	0.1787
0.25	30	1.3305	0.804	0.153
0.25	42	0.5868	0.7645	0.0727
0.25	54	0.8758	0.8218	0.1032
0.35	30	-0.1263	0.8083	0.0332
0.35	42	-1.2465	0.6726	0.1438
0.35	54	-0.091	0.849	0.0317
0.45	30	-0.6131	0.5694	0.0754
0.45	42	-0.2841	0.6635	0.0439
0.45	54	-0.264	0.7383	0.0423
0.55	42	-0.2593	0.7549	0.0419
0.55	54	0.9129	0.8547	0.1072
0.55	234	-0.2006	0.5416	0.0376
0.55	246	0.5477	0.5099	0.0687
0.55	258	-0.194	0.4855	0.0371
0.55	270	1.0884	0.612	0.1264
0.65	138	-0.8104	0.7916	0.0962
0.65	150	0.0003	0.7403	0.03
0.65	162	0.0438	0.8066	0.0304
0.65	174	0.5803	0.887	0.072
0.65	186	1.9197	0.7684	0.2186
0.65	210	0.7386	0.8302	0.0885
0.65	222	-0.2232	0.5904	0.0392
0.65	234	0.5779	0.4709	0.0718
0.65	246	-1.1098	0.4614	0.1287
0.65	258	0.5679	0.4246	0.0707
0.65	270	-0.3165	0.5601	0.0466
0.75	138	1.3199	0.6988	0.1519
0.75	150	0.9197	0.6141	0.108
0.75	162	1.1714	0.6179	0.1355
0.75	174	1.3215	0.5916	0.152
0.75	186	1.5357	0.6848	0.1758
0.75	222	-0.766	0.6187	0.0915
0.75	234	-0.0008	0.4768	0.03
0.75	246	0.2757	0.4714	0.0432
0.75	258	-0.4236	0.437	0.0564
0.75	270	-0.0303	0.4792	0.0302
0.75	282	0.4146	0.7891	0.0556
0.85	138	0.0557	0.7538	0.0307
0.85	150	-0.068	0.6702	0.031
0.85	162	-0.0263	0.7024	0.0301
0.85	174	1.0934	0.7523	0.1269
0.85	222	-0.1599	0.7227	0.035
0.85	234	-0.4085	0.508	0.055
0.85	246	-0.0458	0.3959	0.0304
0.85	258	0.0567	0.4929	0.0307
0.85	270	-0.0947	0.4352	0.0318
0.85	282	0.7284	0.7549	0.0875
0.95	138	-0.0384	0.6001	0.0303
0.95	246	-0.1894	0.5203	0.0368
0.95	258	-0.3148	0.6607	0.0465