CLAS Physics Database

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Measurement E151M1519

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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 :	0.0415 GeV²
W :	1355 GeV
ε :	0.8685
E_beam :	1.3383 GeV
ε_L:	0.1278

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	0.4899	0.8263	0.042
0.25	42	0.5899	0.6454	0.0461
0.35	18	0.0456	0.7244	0.0301
0.35	30	-0.4495	0.8065	0.0403
0.45	30	-1.431	0.7398	0.0909
0.45	42	1.2625	0.6834	0.0814
0.55	234	0.1073	0.7085	0.0307
0.55	258	0.475	0.7795	0.0414
0.65	126	-0.5537	0.6765	0.0447
0.65	138	0.1334	0.6026	0.031
0.65	150	-1.2762	0.7469	0.0822
0.65	222	1.5777	0.6424	0.0992
0.65	234	0.16	0.5462	0.0315
0.65	246	0.0871	0.5447	0.0305
0.65	258	-0.1128	0.5534	0.0308
0.75	114	0.447	0.6922	0.0402
0.75	126	-0.8179	0.5898	0.0575
0.75	138	-0.1954	0.5374	0.0322
0.75	150	-0.6565	0.6894	0.0495
0.75	162	-0.0034	0.6241	0.03
0.75	210	1.1102	0.7791	0.073
0.75	222	-1.0117	0.6337	0.0677
0.75	234	-0.0371	0.5205	0.0301
0.75	246	0.6841	0.4608	0.0508
0.75	258	0.519	0.5033	0.0432
0.75	270	-0.0877	0.5778	0.0305
0.85	102	-0.5439	0.8394	0.0443
0.85	126	0.2514	0.6468	0.0336
0.85	138	-0.1532	0.5901	0.0314
0.85	150	0.4214	0.5985	0.0392
0.85	162	-0.5182	0.7349	0.0432
0.85	222	0.7003	0.6297	0.0516
0.85	234	0.0567	0.5597	0.0302
0.85	246	0.0573	0.5067	0.0302
0.85	258	-0.1381	0.3952	0.0311
0.85	270	0.405	0.4839	0.0386
0.85	282	-0.6147	0.6784	0.0475
0.95	114	0.496	0.5977	0.0422
0.95	126	0.9529	0.6109	0.0645
0.95	138	0.5871	0.6756	0.0462
0.95	222	0.4929	0.7007	0.0421
0.95	234	-0.3891	0.5904	0.038
0.95	246	0.1287	0.5277	0.031
0.95	258	0.1191	0.5442	0.0308
0.95	270	-0.8601	0.6402	0.0596
0.35	42	0.888	1.1141	0.0597
0.45	30	1.2714	0.8357	0.0798
0.45	42	-2.0252	0.7128	0.1215
0.55	234	-0.5055	0.8665	0.042
0.55	246	1.8429	0.7627	0.1113
0.55	258	0.2001	0.7608	0.0322
0.65	126	1.2083	0.752	0.0764
0.65	138	0.306	0.8295	0.0349
0.65	150	0.6938	0.9518	0.0503
0.65	162	-0.7752	1.1717	0.0541
0.65	222	-0.0318	0.8224	0.0301
0.65	234	1.2684	0.5149	0.0796
0.65	246	-0.2907	0.5821	0.0344
0.65	258	-0.0256	0.6577	0.03
0.75	114	-0.0192	1.2087	0.03
0.75	126	0.8611	0.7048	0.0584
0.75	138	-0.9276	0.8022	0.0617
0.75	150	-1.4276	0.7885	0.0883
0.75	162	0.8474	0.9636	0.0577
0.75	222	-0.8268	0.6536	0.0567
0.75	234	-1.1667	0.5993	0.0742
0.75	246	1.0505	0.4852	0.0681
0.75	258	-0.0423	0.5821	0.0301
0.75	270	1.1252	0.8487	0.072
0.85	114	-0.6373	1.0604	0.0477
0.85	126	-0.1054	0.9074	0.0306
0.85	138	0.2022	1.0266	0.0322
0.85	150	0.4451	0.9287	0.0396
0.85	162	1.2192	0.9349	0.077
0.85	210	0.1229	1.013	0.0308
0.85	222	-0.2962	0.8393	0.0346
0.85	234	-0.3091	0.7574	0.035
0.85	246	1.386	0.4714	0.086
0.85	258	-0.9925	0.563	0.065
0.85	270	1.4409	0.4652	0.089
0.95	126	-0.2867	1.0057	0.0343
0.95	222	0.7522	0.8108	0.053
0.95	234	1.1458	0.6983	0.0731
0.95	246	1.0313	0.5939	0.0671
0.95	258	-1.2445	0.3888	0.0783
0.95	270	0.7694	0.7829	0.0539