CLAS Physics Database

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Measurement E151M1377

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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 :	0.0348 GeV²
W :	1415 GeV
ε :	0.6858
E_beam :	1.0539 GeV
ε_L:	0.0628

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	42	0.1368	0.6678	0.0337
0.25	54	-1.3004	0.8374	0.1497
0.35	30	-0.6707	0.9066	0.0814
0.35	42	0.0282	0.7109	0.0302
0.35	54	-0.4381	0.6487	0.0578
0.45	30	0.6159	0.9273	0.0757
0.45	42	-0.1863	0.6202	0.0366
0.45	54	-0.5952	0.7872	0.0735
0.45	234	-0.2731	0.8099	0.043
0.45	246	-0.5948	0.8218	0.0735
0.45	258	0.1091	0.8713	0.0324
0.55	42	0.324	0.7603	0.0473
0.55	54	-1.0854	0.8689	0.126
0.55	150	-0.1569	0.8987	0.0348
0.55	222	0.3841	0.8233	0.0527
0.55	234	-0.5954	0.6947	0.0736
0.55	246	0.2361	0.6351	0.0401
0.55	258	0.1312	0.7059	0.0334
0.65	138	0.0462	0.9912	0.0304
0.65	150	-1.3949	0.6873	0.1602
0.65	162	-0.443	0.8913	0.0583
0.65	222	-0.6097	0.6862	0.075
0.65	234	-0.1325	0.4864	0.0335
0.65	246	0.4419	0.5079	0.0582
0.65	258	-0.0959	0.608	0.0319
0.65	270	-0.149	0.9114	0.0344
0.75	138	0.1692	0.7793	0.0356
0.75	150	-0.0364	0.7862	0.0303
0.75	162	-0.9804	0.8535	0.1146
0.75	174	-0.348	0.845	0.0494
0.75	210	0.9459	0.8736	0.1108
0.75	222	-1.0429	0.686	0.1214
0.75	234	-0.558	0.6367	0.0697
0.75	246	-0.076	0.5087	0.0312
0.75	258	-0.463	0.5012	0.0602
0.75	270	-0.3945	0.7076	0.0537
0.85	138	0.9983	0.9076	0.1165
0.85	150	0.2535	0.8968	0.0414
0.85	222	-0.0821	0.77	0.0314
0.85	234	0.0678	0.4917	0.031
0.85	246	-0.075	0.4875	0.0312
0.85	258	-0.7941	0.5048	0.0945
0.85	270	0.3127	0.6497	0.0463
0.95	138	0.6319	0.7276	0.0773
0.95	234	-0.2022	0.664	0.0377
0.95	246	-0.7408	0.5938	0.0888
0.95	258	0.5321	0.6429	0.0671