Measurement E151M1829

Experiment:	EG4
Year:	2016	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).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LL
ε_L:	0.0458
Q²:	0.0291 GeV²
W:	1505.0 GeV
E_beam:	1.9889 GeV
ε:	0.8914

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	78.0	-0.9715	0.7609
0.35	90.0	1.1521	0.7305
0.35	270.0	0.3474	0.7634
0.35	282.0	-0.5464	0.7013
0.35	294.0	-0.5124	0.6497
0.45	66.0	1.5147	0.7038
0.45	78.0	-0.5162	0.5676
0.45	90.0	0.6309	0.5921
0.45	270.0	-0.3532	0.7276
0.45	282.0	0.6104	0.674
0.45	294.0	0.5798	0.7726
0.55	78.0	-0.4022	0.6698
0.55	90.0	-0.3972	0.6926
0.55	138.0	-0.7051	0.753
0.55	222.0	0.0777	0.7251
0.55	234.0	0.779	0.768
0.55	270.0	0.4818	0.6491
0.55	282.0	-0.132	0.5421
0.55	294.0	-0.7117	0.6844
0.65	78.0	-1.3971	0.7062
0.65	114.0	0.1226	0.6914
0.65	126.0	-0.2291	0.6474
0.65	138.0	-0.5417	0.6603
0.65	150.0	0.0806	0.7692
0.65	198.0	-0.3412	0.7823
0.65	222.0	-0.1456	0.4932
0.65	234.0	-0.5491	0.603
0.65	270.0	-0.7097	0.7288
0.75	78.0	-0.7727	0.7687
0.75	126.0	-0.4624	0.6029
0.75	138.0	-0.9021	0.6231
0.75	210.0	-0.3836	0.7038
0.75	222.0	0.309	0.5221
0.75	234.0	-0.7394	0.6323
0.75	246.0	0.0625	0.687
0.75	282.0	0.7309	0.6254
0.85	114.0	-0.7284	0.8253
0.85	210.0	-0.8955	0.6849
0.85	222.0	-1.2089	0.6338
0.85	234.0	-0.1618	0.5958

CLAS Physics Database