Measurement E151M2089

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:	0.2191
Q²:	0.205 GeV²
W:	1535.0 GeV
E_beam:	2.2596 GeV
ε:	0.8575

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	114.0	-0.0641	1.03
0.75	234.0	0.3735	1.0138
0.85	78.0	0.1307	1.2455
0.85	234.0	-0.9165	1.1264
0.85	246.0	0.1435	1.1517
0.95	90.0	0.6449	3.3796
0.95	258.0	-1.9215	2.8976
0.95	270.0	5.7103	2.8618
0.95	282.0	1.7098	2.6779
0.35	282.0	0.6364	0.7569
0.45	282.0	0.5079	0.6209
0.65	102.0	-0.0622	0.7336
0.65	126.0	0.8811	0.8621
0.75	114.0	-0.4533	0.7789
0.75	222.0	-0.8881	0.8985
0.85	126.0	-0.5993	0.9902
0.85	234.0	1.4542	0.9504
0.85	246.0	0.1091	1.0196
0.85	258.0	0.7074	0.8039
0.85	270.0	1.4571	0.8485
0.95	246.0	1.9305	1.3509
0.95	258.0	2.5033	1.3717
0.95	282.0	-1.1776	1.3904

CLAS Physics Database