CLAS Physics Database

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Measurement E151M1475

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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 :	0.0143 GeV²
W :	1295 GeV
ε :	0.9232
E_beam :	1.3383 GeV
ε_L:	0.0709

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
0.65	234	0.7093	0.7317	0.051
0.65	246	-1.4117	0.607	0.0874
0.65	258	-0.5633	0.6641	0.0444
0.75	150	-0.1132	0.7551	0.0307
0.75	162	-0.411	0.9336	0.0384
0.75	174	0.1213	1.0027	0.0308
0.75	222	1.1046	0.6852	0.0709
0.75	234	-0.4539	0.7256	0.04
0.75	246	1.0073	0.5735	0.0658
0.75	258	-1.2559	0.5779	0.0789
0.75	270	0.5808	0.8547	0.0452
0.85	246	-0.3487	0.689	0.0362
0.85	258	-0.3291	0.768	0.0356
0.55	246	0.0153	0.697	0.03
0.65	234	-0.5007	0.4998	0.0424
0.65	246	0.6118	0.5707	0.0474
0.65	258	-0.7336	0.5529	0.0532
0.65	270	0.3198	0.6122	0.0356
0.75	150	0.0339	0.6596	0.0301
0.75	162	0.5434	0.7914	0.0443
0.75	222	-0.3568	0.6362	0.0368
0.75	234	-0.1109	0.5255	0.0307
0.75	246	0.0878	0.476	0.0305
0.75	258	-0.6751	0.5366	0.0504
0.75	270	1.762	0.5928	0.1098
0.85	234	0.4866	0.521	0.0418
0.85	246	0.4017	0.5332	0.0385
0.85	258	0.1014	0.5144	0.0306