CLAS Physics Database

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Measurement E151M960

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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 :	0.1715 GeV²
W :	1265 GeV
ε :	0.9743
E_beam :	2.999 GeV
ε_L:	0.7407

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	0.4838	0.7748	0.0464
0.05	66	-1.5777	0.4099	0.1192
0.05	306	-0.2112	0.6096	0.0337
0.15	54	-0.3453	0.5473	0.0392
0.15	66	-0.6991	0.3557	0.0593
0.15	294	0.0427	0.6741	0.0302
0.15	306	-1.0332	0.4436	0.0813
0.25	54	0.9588	0.6098	0.0762
0.25	66	-0.5301	0.3058	0.049
0.25	78	-0.3113	0.6193	0.0377
0.25	294	-0.2849	0.5363	0.0365
0.25	306	0.9529	0.7006	0.0758
0.35	54	-0.244	0.6846	0.0349
0.35	66	0.0687	0.3267	0.0304
0.35	78	0.3516	0.4298	0.0395
0.35	282	-0.0081	0.543	0.03
0.35	294	0.157	0.5624	0.0321
0.45	66	-0.1843	0.3541	0.0329
0.45	78	-0.5089	0.4203	0.0478
0.45	282	0.1375	0.4388	0.0316
0.45	294	-0.3103	0.4335	0.0376
0.55	66	-0.3305	0.4578	0.0385
0.55	78	-0.5131	0.4552	0.048
0.55	270	0.0424	0.3546	0.0302
0.55	282	0.077	0.3011	0.0305
0.55	294	-0.4351	0.3396	0.0437
0.65	66	-0.2534	0.5945	0.0353
0.65	78	0.5954	0.5326	0.0529
0.65	90	-0.514	0.404	0.0481
0.65	102	-0.9635	0.4672	0.0765
0.65	258	0.0435	0.4758	0.0302
0.65	270	-0.1089	0.2666	0.031
0.65	282	-0.1989	0.2556	0.0333
0.65	294	-0.249	0.338	0.0351
0.75	66	-0.0904	0.4599	0.0307
0.75	78	-0.0397	0.2977	0.0301
0.75	90	-0.3371	0.2973	0.0388
0.75	102	-0.2174	0.3223	0.0339
0.75	114	-0.0186	0.4678	0.03
0.75	246	-0.6001	0.4602	0.0531
0.75	258	-0.161	0.3109	0.0322
0.75	270	-0.25	0.2465	0.0351
0.75	282	-0.3541	0.2443	0.0396
0.75	294	0.0685	0.2966	0.0304
0.75	306	-0.0787	0.6273	0.0305
0.85	54	0.1735	0.7033	0.0326
0.85	66	-0.0043	0.3541	0.03
0.85	78	0.5951	0.3013	0.0528
0.85	90	0.4565	0.2795	0.0449
0.85	102	-0.2428	0.2605	0.0349
0.85	114	-0.0055	0.3232	0.03
0.85	126	-0.4568	0.3394	0.0449
0.85	138	-0.0086	0.5588	0.03
0.85	222	0.1871	0.6923	0.033
0.85	234	-0.2125	0.4066	0.0338
0.85	246	0.4968	0.4021	0.0471
0.85	258	-0.1676	0.3125	0.0324
0.85	270	-0.2136	0.268	0.0338
0.85	282	0.0359	0.2703	0.0301
0.85	294	0.205	0.2954	0.0335
0.85	306	-0.4385	0.4098	0.0439
0.95	54	1.0734	0.6255	0.084
0.95	66	0.2799	0.3454	0.0363
0.95	78	-0.3062	0.2712	0.0374
0.95	90	-0.1564	0.3127	0.0321
0.95	102	0.2018	0.3027	0.0334
0.95	114	0.3421	0.3264	0.0391
0.95	126	0.0593	0.3265	0.0303
0.95	138	0.4319	0.3752	0.0435
0.95	150	-0.0933	0.4057	0.0308
0.95	162	0.2746	0.4719	0.0361
0.95	174	-0.9902	0.4305	0.0783
0.95	186	1.5051	0.6162	0.114
0.95	198	0.3338	0.5594	0.0387
0.95	210	-0.2143	0.4563	0.0338
0.95	222	0.0429	0.4325	0.0302
0.95	234	0.5522	0.4794	0.0503
0.95	246	0.1537	0.3954	0.032
0.95	258	0.2125	0.3651	0.0338
0.95	270	0.5352	0.3368	0.0493
0.95	282	-0.4551	0.3274	0.0448
0.95	294	-0.0404	0.356	0.0301
0.95	306	0.1355	0.424	0.0316
0.95	318	-0.7741	0.5027	0.064