CLAS Physics Database

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Measurement E151M1249

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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 :	0.0245 GeV²
W :	1235 GeV
ε :	0.9058
E_beam :	1.0539 GeV
ε_L:	0.1741

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	0.1765	0.5812	0.036
0.15	54	0.194	0.6932	0.0371
0.25	30	-0.6298	0.5376	0.0771
0.25	42	-0.0968	0.4715	0.0319
0.25	54	-0.2617	0.4944	0.0421
0.35	30	-0.6241	0.6146	0.0765
0.35	42	-0.2387	0.4601	0.0403
0.35	54	-0.014	0.4142	0.03
0.45	42	-0.5609	0.4438	0.07
0.45	54	-0.8999	0.5016	0.1058
0.45	66	0.3126	0.6437	0.0463
0.45	270	-0.4513	0.475	0.0591
0.45	282	-0.5262	0.4247	0.0665
0.55	246	0.2044	0.4274	0.0378
0.55	258	-0.3329	0.3075	0.0481
0.55	270	-0.3876	0.3291	0.053
0.55	282	0.8763	0.3545	0.1033
0.65	234	0.4483	0.4448	0.0588
0.65	246	-0.1677	0.3533	0.0355
0.65	258	-0.9341	0.2635	0.1095
0.65	270	-0.3201	0.2653	0.0469
0.65	282	0.6682	0.351	0.0811
0.75	126	-0.878	0.5792	0.1035
0.75	138	-0.2606	0.5128	0.042
0.75	150	0.4206	0.4276	0.0561
0.75	162	-0.2968	0.4054	0.0449
0.75	174	-0.2149	0.3803	0.0386
0.75	186	-0.2426	0.4816	0.0406
0.75	198	-0.5433	0.4048	0.0682
0.75	210	0.7466	0.4124	0.0894
0.75	222	0.9491	0.4403	0.1112
0.75	234	-0.194	0.3805	0.0371
0.75	246	-0.1976	0.3148	0.0374
0.75	258	0.1024	0.2685	0.0321
0.75	270	0.3853	0.2623	0.0528
0.75	282	-0.0103	0.4618	0.03
0.85	138	0.7219	0.5009	0.0868
0.85	150	-0.0244	0.3899	0.0301
0.85	162	1.4452	0.3066	0.1657
0.85	174	-0.0175	0.3548	0.0301
0.85	186	-0.1095	0.3584	0.0324
0.85	198	-0.3495	0.4231	0.0495
0.85	210	-0.5861	0.4506	0.0726
0.85	222	0.2835	0.451	0.0438
0.85	234	1.0356	0.349	0.1206
0.85	246	-0.1485	0.5281	0.0344
0.85	258	0.1573	0.348	0.0349
0.85	270	-0.6404	0.4567	0.0782