Measurement E151M1864

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:	0.0779
Q²:	0.0707 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.8407

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	282.0	0.3233	0.8743
0.35	78.0	-1.5309	0.7819
0.35	270.0	0.2279	0.919
0.35	282.0	-0.7643	0.9157
0.45	66.0	-0.3532	0.8288
0.45	78.0	-0.0746	0.8239
0.45	138.0	-1.4623	0.8235
0.45	258.0	-2.0412	0.6841
0.45	270.0	-0.8135	0.7172
0.45	282.0	0.178	0.6631
0.45	294.0	0.1451	0.796
0.55	78.0	0.6027	0.8867
0.55	90.0	-0.1396	0.9706
0.55	114.0	0.7978	0.8576
0.55	210.0	-0.5945	0.8181
0.55	222.0	-0.5377	0.7372
0.55	234.0	0.6589	0.7378
0.55	258.0	1.7707	0.7374
0.55	270.0	-0.4044	0.688
0.55	282.0	0.344	0.641
0.65	102.0	0.2219	0.812
0.65	114.0	-0.2716	0.8116
0.65	126.0	-0.1228	0.7021
0.65	150.0	-1.0904	0.8162
0.65	198.0	0.5063	0.8338
0.65	210.0	-0.4456	0.7898
0.65	222.0	0.7946	0.7907
0.65	234.0	0.9568	0.6884
0.65	270.0	-1.6699	0.7706
0.65	282.0	0.0721	0.9024
0.65	294.0	0.0153	0.9396
0.75	66.0	-0.0825	0.7961
0.75	114.0	0.1947	0.8082
0.75	126.0	0.6757	0.6737
0.75	138.0	1.065	0.7628
0.75	150.0	1.27	0.9393
0.75	198.0	0.3922	0.9046
0.75	210.0	-0.7132	0.8033
0.75	222.0	-0.2183	0.5612
0.75	234.0	-0.0138	0.6571
0.75	246.0	0.6562	0.7953
0.75	270.0	-0.0753	0.8135
0.75	282.0	-0.1582	0.6651
0.75	294.0	1.2535	0.6946
0.85	102.0	-1.487	0.752
0.85	114.0	-0.4407	0.7923
0.85	138.0	1.4349	0.7388
0.85	198.0	-0.0498	0.9661
0.85	210.0	-1.1378	0.627
0.85	222.0	-0.6376	0.6389
0.85	234.0	0.5079	0.6602
0.85	246.0	-0.5882	0.5931
0.95	114.0	-1.0482	0.8239
0.95	222.0	-0.1654	0.7515
0.95	234.0	0.5709	0.684

CLAS Physics Database