CLAS Physics Database

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Measurement E151M1496

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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_LL,

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

Q² :	0.0205 GeV²
W :	1325 GeV
ε :	0.9023
E_beam :	1.3383 GeV
ε_L:	0.0812

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LL,
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_LL	Stat. error	Syst. error
0.25	30	0.1789	1.0508	0.0318
0.25	42	-0.2868	0.5452	0.0379
0.25	54	-0.0762	0.7639	0.0429
0.35	30	-0.1788	0.9856	0.0318
0.35	42	-0.6854	0.46	0.0606
0.45	30	0.6351	0.9275	0.0476
0.45	42	-0.1859	0.9887	0.0319
0.55	30	-2.9165	2.9165	0.1722
0.55	42	2.0252	0.5986	0.1215
0.55	234	0.4475	0.7465	0.0397
0.55	246	-0.3909	0.7498	0.0376
0.55	258	1.1686	0.7632	0.0743
0.65	126	0.5689	0.6785	0.0447
0.65	138	0.6423	0.7666	0.0479
0.65	150	0.8334	0.9427	0.057
0.65	210	-1.0264	0.8097	0.0668
0.65	222	0.6796	0.6835	0.0496
0.65	234	-0.7008	0.628	0.0506
0.65	246	0.8489	0.4902	0.0578
0.65	258	-0.0008	0.6238	0.03
0.65	270	-0.3117	0.805	0.0351
0.75	126	1.2479	0.6973	0.0785
0.75	138	0.5216	0.6992	0.0427
0.75	150	-1.0362	0.6576	0.0673
0.75	162	-0.3147	0.8441	0.0351
0.75	174	-0.2676	0.984	0.0338
0.75	210	1.2502	0.7313	0.0786
0.75	222	-0.5396	0.6418	0.0434
0.75	234	0.8145	0.4981	0.0561
0.75	246	0.3737	0.5792	0.037
0.75	258	-1.1593	0.4807	0.0738
0.75	270	0.2948	0.7494	0.0346
0.85	126	0.2753	0.9786	0.034
0.85	138	-0.0574	0.9634	0.0302
0.85	150	-0.5898	0.8701	0.0456
0.85	210	0.2745	0.849	0.034
0.85	222	1.2961	0.5227	0.0811
0.85	234	-0.7671	0.5444	0.0538
0.85	246	0.2784	0.5695	0.0341
0.85	258	0.1379	0.5271	0.0311
0.85	270	-0.0703	0.785	0.0303
0.95	234	0.8155	0.8847	0.0561
0.95	246	0.6907	0.7161	0.0501
0.35	54	0.9926	0.6605	0.0666
0.45	30	-1.3746	0.6263	0.0877
0.45	42	-0.201	0.6509	0.0323
0.55	138	0.4498	0.8423	0.0403
0.55	234	-0.8427	0.5877	0.0587
0.55	246	-0.7145	0.5405	0.0523
0.55	258	-1.0025	0.5754	0.0672
0.65	126	0.2723	0.6808	0.0342
0.65	138	1.1479	0.5777	0.0751
0.65	150	-0.3979	0.6608	0.0383
0.65	162	-0.323	0.6723	0.0357
0.65	210	-1.0647	0.7365	0.0705
0.65	222	0.7278	0.4788	0.0529
0.65	234	0.9154	0.448	0.0625
0.65	246	-0.0206	0.4298	0.03
0.65	258	-0.2644	0.4378	0.0339
0.75	114	0.4281	0.7471	0.0395
0.75	126	0.2057	0.5064	0.0324
0.75	138	-0.1958	0.4918	0.0322
0.75	150	0.3783	0.6086	0.0376
0.75	162	0.5072	0.5224	0.0427
0.75	198	0.172	0.7527	0.0317
0.75	210	-0.6117	0.6289	0.0474
0.75	222	0.281	0.5472	0.0344
0.75	234	-0.196	0.4241	0.0322
0.75	246	0.6542	0.4026	0.0494
0.75	258	0.5246	0.4573	0.0435
0.75	270	0.1741	0.5929	0.0318
0.85	126	-1.2798	0.6109	0.0824
0.85	138	-0.483	0.6388	0.0417
0.85	150	-0.7373	0.5502	0.0534
0.85	162	-0.03	0.6616	0.0301
0.85	174	-0.0011	0.7483	0.03
0.85	198	0.5784	0.7768	0.0458
0.85	210	-0.0357	0.7814	0.0301
0.85	222	0.0167	0.5264	0.03
0.85	234	0.9003	0.4133	0.0617
0.85	246	-0.026	0.3739	0.03
0.85	258	0.1451	0.4202	0.0312
0.85	270	-0.9558	0.4963	0.0647
0.95	234	1.1111	0.5679	0.073
0.95	246	0.3186	0.6339	0.0356