CLAS Physics Database

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Measurement E151M1251

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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 :	1235 GeV
ε :	0.8967
E_beam :	1.0539 GeV
ε_L:	0.2379

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
0.15	42	-0.3038	0.5809	0.0455
0.15	54	0.5041	0.6443	0.0643
0.25	42	-0.265	0.5097	0.0423
0.25	54	0.0164	0.4779	0.0301
0.35	42	-0.3532	0.513	0.0499
0.35	54	0.9962	0.4427	0.1163
0.35	66	-0.8648	0.7557	0.1021
0.45	42	-1.247	0.5846	0.1438
0.45	54	0.1618	0.6382	0.0351
0.45	270	0.2968	0.4853	0.0449
0.45	282	0.4313	0.4326	0.0572
0.55	246	0.5393	0.5501	0.0678
0.55	258	-0.1316	0.4031	0.0335
0.55	270	-0.1688	0.3564	0.0355
0.55	282	-0.0748	0.36	0.0312
0.65	234	-0.4182	0.5133	0.0559
0.65	246	-0.0081	0.3859	0.03
0.65	258	0.2386	0.3036	0.0403
0.65	270	0.2973	0.3175	0.045
0.65	282	-0.1972	0.3856	0.0373
0.75	138	0.6018	0.6607	0.0742
0.75	150	0.5311	0.5448	0.067
0.75	162	-0.0918	0.4598	0.0317
0.75	174	0.6447	0.4941	0.0787
0.75	186	-0.56	0.5337	0.0699
0.75	198	1.3231	0.4401	0.1522
0.75	210	-0.2312	0.5339	0.0397
0.75	234	-0.731	0.4954	0.0877
0.75	246	0.4122	0.4211	0.0553
0.75	258	-0.1097	0.2788	0.0325
0.75	270	-0.969	0.2982	0.1133
0.75	282	0.7118	0.3875	0.0857
0.85	138	0.3848	0.4428	0.0528
0.85	150	-0.5173	0.4174	0.0656
0.85	162	0.0556	0.3731	0.0306
0.85	174	-0.2055	0.3769	0.0379
0.85	186	0.1046	0.4076	0.0322
0.85	198	-0.3367	0.4692	0.0484
0.85	210	-0.3467	0.4611	0.0493
0.85	222	-0.4193	0.5292	0.056
0.85	234	-0.1729	0.4539	0.0358
0.85	246	-0.0672	0.4088	0.0309
0.85	258	-0.0526	0.3706	0.0306
0.85	270	0.4696	0.3916	0.0609
0.95	150	0.686	0.4242	0.083
0.95	162	-0.1024	0.5407	0.0321
0.95	186	0.329	0.4557	0.0477
0.95	198	0.757	0.4664	0.0905