CLAS Physics Database

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Measurement E151M984

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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_UL,
Target spin asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.348 GeV²
W :	1325 GeV
ε :	0.9473
E_beam :	2.999 GeV
ε_L:	0.7759

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_UL,
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_UL	Stat. error	Syst. error
0.05	54	0.4819	0.7621	0.0463
0.05	66	-1.023	0.5129	0.0806
0.15	66	-1.27	0.4535	0.0975
0.15	294	-0.4976	0.6339	0.0471
0.25	54	0.2959	0.7677	0.037
0.25	66	0.5679	0.7181	0.0512
0.25	294	-0.0396	0.6543	0.0301
0.35	54	1.2313	0.8969	0.0949
0.35	66	-0.3233	0.7176	0.0382
0.35	294	-1.3845	0.4658	0.1055
0.45	78	-0.8629	0.5912	0.0698
0.45	90	-0.6025	0.619	0.0533
0.45	282	0.1357	0.6919	0.0316
0.55	66	0.5887	0.7427	0.0525
0.55	78	0.5206	0.6783	0.0485
0.55	90	1.3953	0.734	0.1063
0.55	102	-0.8334	0.6395	0.0679
0.55	270	-0.4791	0.6087	0.0461
0.55	282	0.6592	0.5281	0.0568
0.65	66	-0.3732	0.5035	0.0405
0.65	78	0.4439	0.5207	0.0442
0.65	90	-1.0205	0.378	0.0804
0.65	102	0.1234	0.6036	0.0313
0.65	258	-1.0847	0.3992	0.0848
0.65	270	0.7875	0.6221	0.0649
0.65	282	0.0586	0.4696	0.0303
0.65	294	-0.4809	0.4628	0.0462
0.75	54	-0.0442	0.664	0.0302
0.75	66	0.0472	0.5454	0.0302
0.75	78	-0.2809	0.3776	0.0364
0.75	90	0.349	0.4694	0.0394
0.75	102	-0.2139	0.4613	0.0338
0.75	114	-0.227	0.6068	0.0343
0.75	234	0.8784	0.7883	0.0709
0.75	246	0.5043	0.7027	0.0475
0.75	258	-0.2048	0.4665	0.0335
0.75	270	0.845	0.4778	0.0687
0.75	282	-0.6174	0.4049	0.0542
0.75	294	0.0593	0.4394	0.0303
0.75	306	-0.9644	0.3737	0.0766
0.75	318	0.029	0.627	0.0301
0.85	42	1.4866	0.791	0.1127
0.85	66	-0.1181	0.4402	0.0312
0.85	78	-0.5989	0.3572	0.0531
0.85	90	0.7012	0.5696	0.0594
0.85	102	0.8161	0.5136	0.0668
0.85	114	-0.4552	0.4484	0.0448
0.85	126	-0.2867	0.5271	0.0366
0.85	210	-0.085	0.7311	0.0306
0.85	222	-0.4506	0.5448	0.0445
0.85	234	0.1889	0.5738	0.033
0.85	246	-0.2485	0.4383	0.0351
0.85	258	0.2042	0.5249	0.0335
0.85	270	-0.5983	0.3799	0.053
0.85	282	0.2362	0.3964	0.0346
0.85	294	-0.5067	0.3765	0.0477
0.85	306	0.166	0.4557	0.0324
0.85	318	0.4346	0.4851	0.0437
0.85	330	-0.1307	0.6254	0.0315
0.95	66	0.772	0.5512	0.0639
0.95	78	-0.5742	0.433	0.0516
0.95	90	-0.6757	0.4588	0.0578
0.95	102	-0.3685	0.454	0.0403
0.95	114	-0.6523	0.5062	0.0563
0.95	126	0.6205	0.7154	0.0544
0.95	138	0.4735	0.7314	0.0458
0.95	198	-1.0228	0.4797	0.0806
0.95	210	-0.2708	0.5745	0.0359
0.95	222	1.3733	0.6646	0.1048
0.95	234	-0.5214	0.4965	0.0485
0.95	246	-0.3734	0.4594	0.0406
0.95	258	-0.2444	0.4416	0.0349
0.95	270	0.0751	0.4367	0.0305
0.95	282	0.4402	0.5097	0.044
0.95	294	0.0261	0.5858	0.0301
0.95	306	0.1752	0.4706	0.0326
0.95	318	-0.3069	0.412	0.0375
0.95	330	-0.4423	0.4567	0.0441
0.95	342	-0.4015	0.5526	0.042