CLAS Physics Database

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Measurement E151M2385

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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 :	0.1205 GeV²
W :	1775 GeV
ε :	0.8551
E_beam :	2.999 GeV
ε_L:	0.0635

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
0.45	126	0.6967	0.9906	0.0588
0.45	270	1.0522	1.0176	0.082
0.45	282	-0.4507	0.9345	0.0444
0.55	126	0.9183	1.1419	0.073
0.55	138	0.0928	1.1674	0.0307
0.55	210	-1.0891	0.9502	0.0845
0.65	114	0.5199	0.9056	0.0482
0.65	126	0.3909	0.9375	0.0413
0.65	138	-0.7618	1.0079	0.0629
0.65	186	-2.5485	1.1079	0.1872
0.65	198	1.1578	1.1124	0.0892
0.65	210	-1.6798	0.8338	0.1254
0.65	222	-1.2452	0.9451	0.0951
0.65	270	0.7773	0.9298	0.0639
0.65	282	0.9377	0.7814	0.0743
0.65	294	0.1066	0.9652	0.031
0.75	90	-0.5914	1.1032	0.0523
0.75	102	0.4072	0.9672	0.0421
0.75	126	0.7518	1.1465	0.0622
0.75	138	-2.6991	0.998	0.198
0.75	186	-1.1043	1.0877	0.0855
0.75	198	-0.2911	0.8508	0.0367
0.75	210	0.4539	0.7926	0.0445
0.75	222	-1.4231	0.8638	0.1075
0.75	234	1.1204	1.1734	0.0866
0.75	258	-0.927	0.9366	0.0736
0.75	270	-0.9261	0.8745	0.0736
0.75	282	-1.3292	0.6174	0.1009
0.75	294	-1.4727	0.8577	0.1109
0.85	90	0.0112	0.7051	0.03
0.85	102	-1.0869	0.6856	0.0843
0.85	114	0.1663	0.6845	0.0323
0.85	126	-1.3453	0.7963	0.1021
0.85	174	0.6814	0.7565	0.0578
0.85	186	-0.2778	0.7293	0.0361
0.85	198	-1.0404	0.7552	0.0812
0.85	210	-0.7114	0.6647	0.0597
0.85	222	0.8272	0.7229	0.0671
0.85	234	0.0765	0.7941	0.0305
0.85	246	-1.1119	0.7957	0.086
0.95	114	-1.8396	0.89	0.1367
0.95	186	-0.2009	0.8644	0.0334
0.95	198	-0.9785	0.9322	0.077
0.95	210	1.7391	0.7844	0.1296
0.95	222	0.223	0.8638	0.0341
0.95	234	0.7477	1.014	0.062
0.95	246	1.2585	0.8835	0.0961