Measurement E151M2189

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:	1.1217
Q²:	0.5925 GeV²
W:	1265.0 GeV
E_beam:	2.999 GeV
ε:	0.9258

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	282.0	0.77	0.715
0.55	294.0	0.0985	0.7005
0.65	66.0	0.7792	0.7473
0.65	78.0	-0.8066	0.7916
0.65	270.0	0.203	0.7341
0.65	282.0	0.6973	0.6658
0.65	318.0	0.357	0.7109
0.75	78.0	0.2484	0.6663
0.75	258.0	-0.3889	0.7793
0.75	270.0	-0.0544	0.6971
0.75	282.0	-0.169	0.5819
0.75	294.0	0.4553	0.7386
0.85	66.0	1.183	0.7658
0.85	78.0	0.0729	0.7525
0.85	90.0	-0.1597	0.7319
0.85	246.0	0.7198	0.6808
0.85	258.0	0.9005	0.7205
0.85	270.0	-0.2508	0.7137
0.85	282.0	-0.5592	0.7881
0.85	294.0	0.6829	0.6241
0.85	306.0	0.3214	0.7019
0.85	318.0	1.1291	0.715
0.95	270.0	0.4121	0.732

CLAS Physics Database