CLAS Physics Database

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Measurement E151M965

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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 :	0.4155 GeV²
W :	1265 GeV
ε :	0.9477
E_beam :	2.999 GeV
ε_L:	1.0758

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	66	-0.913	0.4911	0.0732
0.15	66	-0.4092	0.4905	0.0424
0.35	282	0.3258	0.687	0.0383
0.45	282	0.1277	0.691	0.0314
0.45	294	0.2425	0.6913	0.0348
0.55	78	-1.0039	0.4896	0.0793
0.55	90	-0.9304	0.5304	0.0743
0.55	270	-0.0281	0.5646	0.0301
0.55	282	1.0261	0.6319	0.0808
0.55	294	0.992	0.5667	0.0785
0.55	306	0.1035	0.5895	0.0309
0.65	66	-0.4017	0.5009	0.042
0.65	78	0.1187	0.6375	0.0312
0.65	90	0.1768	0.5875	0.0327
0.65	270	-0.0288	0.5854	0.0301
0.65	282	0.6597	0.593	0.0568
0.65	294	0.3777	0.5495	0.0408
0.75	54	0.673	0.7952	0.0576
0.75	66	-0.4385	0.4581	0.0439
0.75	78	-0.8859	0.3667	0.0714
0.75	90	0.3829	0.6084	0.041
0.75	102	-0.305	0.544	0.0374
0.75	258	0.7497	0.6717	0.0625
0.75	270	0.005	0.4334	0.03
0.75	282	0.1917	0.4848	0.0331
0.75	294	0.0633	0.4436	0.0304
0.75	306	0.5875	0.5509	0.0524
0.85	54	-0.4741	0.507	0.0458
0.85	66	-0.719	0.4458	0.0605
0.85	78	-0.5026	0.4599	0.0474
0.85	90	-0.1316	0.4917	0.0315
0.85	102	-0.3218	0.5246	0.0381
0.85	114	-0.286	0.6203	0.0366
0.85	246	0.5217	0.6442	0.0485
0.85	258	0.0891	0.4932	0.0307
0.85	270	0.8385	0.6048	0.0682
0.85	282	0.1751	0.4823	0.0326
0.85	294	-0.766	0.3796	0.0635
0.85	306	1.2218	0.5761	0.0942
0.85	318	0.4407	0.5183	0.044
0.95	54	-0.7093	0.5326	0.0599
0.95	66	-0.4584	0.4475	0.045
0.95	78	0.1716	0.6997	0.0325
0.95	90	-0.4445	0.5471	0.0442
0.95	114	-0.6461	0.5105	0.0559
0.95	246	0.1133	0.6111	0.0311
0.95	258	0.4001	0.6973	0.0419
0.95	270	-0.1489	0.4489	0.0319
0.95	282	0.5519	0.6609	0.0503
0.95	294	0.1681	0.5914	0.0324
0.95	318	0.1166	0.6225	0.0312