CLAS Physics Database

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Measurement E151M983

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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 :	1325 GeV
ε :	0.9542
E_beam :	2.999 GeV
ε_L:	0.7196

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
-0.15	306	-0.7532	0.6058	0.0627
-0.05	54	0.5068	0.8012	0.0477
-0.05	306	-0.6434	0.5742	0.0558
0.05	54	-0.2031	0.6925	0.0335
0.05	66	1.3413	0.799	0.1025
0.15	54	-1.3783	0.4829	0.1051
0.15	66	-1.0746	0.459	0.0841
0.15	306	0.859	0.8084	0.0696
0.25	54	-0.6985	0.6477	0.0592
0.25	66	0.1232	0.5741	0.0313
0.25	78	1.2762	0.9161	0.098
0.25	294	0.3572	0.6812	0.0398
0.25	306	-0.7781	0.5879	0.0643
0.35	66	-0.7393	0.577	0.0618
0.35	294	1.0138	0.8024	0.0799
0.45	294	0.6326	0.7181	0.0551
0.55	78	0.7718	0.6608	0.0639
0.55	90	0.4744	0.5888	0.0458
0.55	102	-1.0583	0.586	0.083
0.55	270	0.215	0.651	0.0339
0.55	282	0.2063	0.5489	0.0336
0.55	294	-0.6203	0.6234	0.0544
0.65	66	0.2506	0.507	0.0351
0.65	78	0.6406	0.5514	0.0556
0.65	90	-0.4443	0.3751	0.0442
0.65	102	-0.0807	0.5679	0.0306
0.65	258	1.3388	0.7082	0.1023
0.65	270	-0.2294	0.4095	0.0344
0.65	282	0.0206	0.4186	0.03
0.65	294	-0.4565	0.451	0.0449
0.75	54	0.2614	0.6294	0.0356
0.75	66	0.5021	0.5083	0.0474
0.75	78	0.2923	0.3977	0.0368
0.75	90	-0.1915	0.3458	0.0331
0.75	102	0.4346	0.4408	0.0437
0.75	114	0.1972	0.4958	0.0333
0.75	234	0.4286	0.8231	0.0434
0.75	246	-0.058	0.5389	0.0303
0.75	258	0.1045	0.5125	0.031
0.75	270	0.6911	0.4019	0.0587
0.75	282	0.0804	0.3776	0.0306
0.75	294	0.0996	0.422	0.0309
0.75	306	-0.3114	0.4306	0.0377
0.85	42	0.071	0.7198	0.0304
0.85	66	-0.5473	0.4215	0.05
0.85	78	-0.1473	0.3472	0.0319
0.85	90	-0.3156	0.3534	0.0378
0.85	102	0.2764	0.4026	0.0362
0.85	114	0.8322	0.4834	0.0678
0.85	126	0.6964	0.6036	0.0591
0.85	210	-0.2945	0.6162	0.0369
0.85	222	-0.0994	0.5679	0.0309
0.85	234	-0.1751	0.4383	0.0326
0.85	246	0.6866	0.4534	0.0585
0.85	258	0.1299	0.4154	0.0315
0.85	270	-0.8808	0.3095	0.071
0.85	282	-0.1637	0.3559	0.0323
0.85	294	-0.3254	0.3302	0.0383
0.85	306	-0.5896	0.2807	0.0525
0.85	318	-0.418	0.4563	0.0428
0.95	54	0.7949	0.7674	0.0654
0.95	66	0.254	0.6078	0.0353
0.95	78	-0.1974	0.4812	0.0333
0.95	90	-0.8423	0.4052	0.0685
0.95	102	1.1727	0.6152	0.0908
0.95	114	-0.54	0.4376	0.0496
0.95	126	0.181	0.5763	0.0328
0.95	138	-0.0148	0.6099	0.03
0.95	174	0.0326	0.7396	0.0301
0.95	186	0.9868	0.8084	0.0781
0.95	198	-1.4364	0.3927	0.1092
0.95	210	-0.8087	0.4272	0.0663
0.95	222	-0.5362	0.4346	0.0494
0.95	234	-0.1763	0.4653	0.0327
0.95	246	0.275	0.4929	0.0361
0.95	258	-0.0272	0.4473	0.0301
0.95	270	-0.0438	0.4079	0.0302
0.95	282	0.4162	0.4294	0.0427
0.95	294	0.0471	0.39	0.0302
0.95	306	0.21	0.4259	0.0337
0.95	318	-0.9244	0.3089	0.0739
0.95	330	0.3551	0.5858	0.0397