CLAS Physics Database

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Measurement E151M1732

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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 :	0.1715 GeV²
W :	1295 GeV
ε :	0.9295
E_beam :	1.9889 GeV
ε_L:	0.599

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
0.05	306	-0.148	0.7333	0.0313
0.25	66	-0.3259	0.6591	0.0359
0.25	78	-1.086	0.652	0.0723
0.25	306	0.4147	0.6845	0.0391
0.35	66	0.7477	0.5237	0.0543
0.35	78	0.9229	0.6528	0.0635
0.45	66	-1.238	0.6232	0.0808
0.45	78	0.1578	0.5614	0.0315
0.45	282	-0.0031	0.7202	0.03
0.55	66	1.3344	0.5744	0.0862
0.55	270	0.9206	0.6367	0.0633
0.55	282	-0.3766	0.6337	0.0377
0.65	90	0.8346	0.6824	0.0588
0.65	102	-0.5484	0.6267	0.0448
0.65	258	-0.057	0.5693	0.0302
0.65	270	-1.0725	0.4898	0.0716
0.65	282	1.125	0.4632	0.0745
0.75	78	-0.5102	0.7057	0.0431
0.75	90	0.7193	0.684	0.0529
0.75	102	-0.1912	0.5795	0.0322
0.75	114	-0.3003	0.6572	0.0351
0.75	126	-0.1165	0.6675	0.0308
0.75	246	0.5585	0.5169	0.0452
0.75	258	0.2644	0.4995	0.034
0.75	270	-0.4417	0.4524	0.0402
0.75	282	-0.4336	0.4048	0.0399
0.75	294	0.4732	0.553	0.0415
0.85	78	0.5475	0.5537	0.0447
0.85	90	0.1589	0.4477	0.0315
0.85	102	-0.2571	0.4684	0.0338
0.85	114	0.1682	0.4592	0.0317
0.85	126	0.5593	0.5187	0.0453
0.85	138	-0.6873	0.6818	0.0513
0.85	150	0.0085	0.6401	0.03
0.85	222	0.7077	0.6185	0.0523
0.85	234	0.1945	0.537	0.0322
0.85	246	0.4716	0.4474	0.0414
0.85	258	0.3598	0.4664	0.0371
0.85	270	-0.2646	0.3879	0.034
0.85	282	-0.3606	0.3742	0.0371
0.85	294	-0.9677	0.4801	0.0659
0.95	90	0.5242	0.5024	0.0437
0.95	102	0.7258	0.4066	0.0532
0.95	114	-0.3213	0.5169	0.0358
0.95	126	0.7424	0.4546	0.0541
0.95	138	0.3691	0.5023	0.0374
0.95	150	-0.2404	0.6265	0.0333
0.95	162	-1.1864	0.5997	0.0779
0.95	222	0.5196	0.6443	0.0435
0.95	246	0.3812	0.5267	0.0379
0.95	258	0.682	0.4231	0.0511
0.95	270	0.9164	0.4193	0.0631
0.95	282	-0.1336	0.5479	0.0311
0.95	294	0.7032	0.4993	0.0521