CLAS Physics Database

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Measurement E151M995

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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 :	0.2915 GeV²
W :	1355 GeV
ε :	0.9498
E_beam :	2.999 GeV
ε_L:	0.6269

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	306	-1.685	0.4209	0.1268
0.05	54	1.1874	0.8421	0.0918
0.05	66	0.2988	0.7911	0.0371
0.05	294	-0.2002	0.721	0.0334
0.05	306	-0.5165	0.5565	0.0482
0.15	54	0.3394	0.826	0.0389
0.15	66	0.6154	0.6751	0.0541
0.15	294	0.5443	0.8026	0.0498
0.15	306	-0.9222	0.5172	0.0738
0.25	54	-0.5793	0.6465	0.0519
0.25	66	0.7851	0.7146	0.0648
0.25	294	-0.5363	0.5799	0.0494
0.25	306	-0.5036	0.6478	0.0475
0.35	54	-0.0083	0.6766	0.03
0.35	66	0.2418	0.7455	0.0348
0.35	282	0.0655	0.7191	0.0304
0.35	294	-0.2837	0.7106	0.0365
0.45	54	0.4717	0.8353	0.0457
0.45	90	-0.5863	0.7137	0.0523
0.55	78	0.6444	0.6933	0.0558
0.55	90	0.6302	0.6581	0.055
0.55	102	1.2167	0.8037	0.0939
0.55	270	1.0626	0.7534	0.0833
0.55	282	0.0224	0.6139	0.03
0.65	66	-0.1239	0.5972	0.0313
0.65	78	0.0781	0.4607	0.0305
0.65	90	-0.0525	0.4457	0.0302
0.65	102	-0.312	0.4749	0.0377
0.65	114	-0.6558	0.598	0.0565
0.65	258	-0.0493	0.5576	0.0302
0.65	270	0.232	0.4801	0.0345
0.65	282	-0.6628	0.3733	0.057
0.65	294	-0.7184	0.6293	0.0605
0.75	54	-0.0341	0.5913	0.0301
0.75	66	-1.0086	0.5447	0.0796
0.75	78	0.0636	0.4067	0.0304
0.75	90	-0.0508	0.3978	0.0302
0.75	102	-0.0188	0.4385	0.03
0.75	114	0.5249	0.5479	0.0487
0.75	126	-0.3096	0.6872	0.0376
0.75	234	-0.1483	0.6332	0.0319
0.75	246	1.1516	0.5692	0.0894
0.75	258	0.1846	0.4275	0.0329
0.75	270	-0.1317	0.3878	0.0315
0.75	282	0.6592	0.4783	0.0568
0.75	294	0.049	0.4819	0.0302
0.75	306	-0.0674	0.5407	0.0304
0.85	42	-0.8864	0.5531	0.0714
0.85	54	0.2768	0.6051	0.0362
0.85	66	-0.9359	0.5402	0.0747
0.85	78	0.0674	0.3699	0.0304
0.85	90	-0.1304	0.3328	0.0315
0.85	102	0.0857	0.401	0.0306
0.85	114	0.466	0.4732	0.0454
0.85	126	-0.1739	0.5691	0.0326
0.85	138	0.0151	0.747	0.03
0.85	210	-0.3681	0.584	0.0403
0.85	222	-0.0261	0.6072	0.0301
0.85	234	1.3736	0.5441	0.1048
0.85	246	0.5406	0.4687	0.0496
0.85	258	0.3786	0.3916	0.0408
0.85	270	0.1241	0.3602	0.0313
0.85	282	-0.3477	0.3418	0.0393
0.85	294	-0.0985	0.3479	0.0309
0.85	306	-0.088	0.3682	0.0307
0.85	318	-0.1646	0.5403	0.0323
0.95	66	-0.1507	0.6653	0.032
0.95	78	0.1335	0.5121	0.0315
0.95	90	0.5488	0.5249	0.0501
0.95	102	0.2549	0.4552	0.0353
0.95	114	0.0899	0.5017	0.0307
0.95	126	0.811	0.6434	0.0664
0.95	138	-0.4228	0.6291	0.0431
0.95	150	-1.2665	0.5037	0.0973
0.95	186	0.7496	0.7865	0.0625
0.95	198	-0.4655	0.5762	0.0454
0.95	210	-0.3264	0.5929	0.0383
0.95	222	-0.711	0.4486	0.06
0.95	234	-0.6466	0.415	0.056
0.95	246	-0.1333	0.4189	0.0315
0.95	258	-0.3878	0.3875	0.0413
0.95	270	0.7323	0.4575	0.0614
0.95	282	-0.5907	0.3383	0.0526
0.95	294	0.2942	0.4424	0.0369
0.95	306	0.4118	0.4008	0.0425
0.95	318	0.3592	0.4935	0.0399
0.95	330	0.651	0.5756	0.0562
0.95	342	1.4896	0.7155	0.1129