Measurement E151M2339

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:	0.2399
Q²:	0.4155 GeV²
W:	1655.0 GeV
E_beam:	2.999 GeV
ε:	0.848

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	90.0	0.8478	0.8282	0.0684
0.65	66.0	0.196	0.9698	0.0332
0.65	90.0	-1.0806	0.8976	0.0839
0.65	102.0	-0.8825	0.922	0.0707
0.65	114.0	-1.2886	0.7901	0.0981
0.65	306.0	-0.3927	0.861	0.0414
0.75	66.0	-0.2589	0.8523	0.0354
0.75	78.0	1.4309	0.7466	0.108
0.75	102.0	-0.8288	0.8523	0.0672
0.75	114.0	-0.524	0.8029	0.0484
0.75	198.0	-1.3252	0.9223	0.1007
0.75	246.0	-0.218	0.8923	0.0339
0.85	66.0	-0.1021	0.7283	0.0309
0.85	78.0	2.5994	2.5994	0.1909
0.85	90.0	-0.7406	0.8407	0.0615
0.85	186.0	0.739	0.9475	0.0614
0.85	198.0	0.5428	0.9982	0.0495
0.85	210.0	0.328	0.7552	0.0383
0.85	222.0	0.2822	0.9205	0.0363
0.85	234.0	-0.1779	0.7695	0.0327
0.85	246.0	-0.9361	0.681	0.0742
0.85	258.0	1.1184	0.6237	0.0865
0.85	270.0	-0.2675	0.7059	0.0357
0.85	282.0	0.0367	0.7985	0.0301
0.95	198.0	1.1628	0.8041	0.0895
0.95	210.0	0.1281	0.8528	0.0314
0.95	222.0	0.9395	0.7617	0.0744
0.95	234.0	0.5822	0.8235	0.0518
0.95	246.0	-0.2676	0.6377	0.0357
0.95	258.0	0.1702	0.7157	0.0324
0.95	270.0	-0.1947	0.7037	0.0332
0.95	282.0	-0.9892	0.7171	0.0778
0.95	294.0	-0.0143	0.6511	0.03
0.95	306.0	0.3669	0.751	0.0401

CLAS Physics Database