CLAS Physics Database

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Measurement E151M1362

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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 :	0.0844 GeV²
W :	1385 GeV
ε :	0.6751
E_beam :	1.0539 GeV
ε_L:	0.1594

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	-1.2606	0.8305	0.1453
0.55	234	-0.2074	0.9218	0.038
0.55	246	-0.894	0.8738	0.1052
0.55	258	0.028	0.7431	0.0302
0.65	150	-1.6509	0.9188	0.1886
0.65	234	-1.4424	0.7469	0.1654
0.65	246	0.6614	0.7091	0.0804
0.65	258	0.0562	0.7247	0.0307
0.65	270	0.7372	0.7891	0.0884
0.75	138	2.0079	0.882	0.2284
0.75	150	-1.7875	0.82	0.2038
0.75	162	-0.018	0.9417	0.0301
0.75	174	0.6628	0.8821	0.0805
0.75	234	-1.0363	0.7646	0.1207
0.75	246	-1.1434	0.6574	0.1324
0.75	258	0.7673	0.6745	0.0916
0.75	270	-0.74	0.6615	0.0887
0.85	126	0.4174	0.9721	0.0558
0.85	138	0.6019	0.9397	0.0742
0.85	150	0.7248	0.9362	0.0871
0.85	162	0.9151	0.9607	0.1075
0.85	174	-0.6561	0.821	0.0799
0.85	234	0.22	0.7736	0.0389
0.85	246	-0.2202	0.6052	0.0389
0.85	258	0.9318	0.6306	0.1093
0.85	270	0.0405	0.536	0.0303
0.85	282	0.455	0.6586	0.0594
0.95	258	0.8753	0.5836	0.1032
0.95	270	1.9956	1.9956	0.2271