Measurement E151M2212

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:	0.3554
Q²:	0.1205 GeV²
W:	1355.0 GeV
E_beam:	2.999 GeV
ε:	0.9699

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	258.0	-0.0107	0.9199
0.65	270.0	0.6767	0.8057
0.75	90.0	1.2413	0.6716
0.75	102.0	0.9646	0.8186
0.75	114.0	0.6043	0.7779
0.75	246.0	-0.6943	0.7115
0.75	258.0	-0.7005	0.6747
0.75	270.0	-1.2799	0.7292
0.75	282.0	-0.2759	0.9047
0.85	90.0	1.802	0.8856
0.85	102.0	0.7663	0.6764
0.85	114.0	0.9026	0.7339
0.85	126.0	0.3421	0.6962
0.85	138.0	1.4413	0.7357
0.85	222.0	-0.1982	0.7226
0.85	234.0	0.5977	0.7511
0.85	246.0	-0.805	0.6781
0.85	258.0	-0.8073	0.5814
0.85	270.0	1.1402	0.6814
0.85	282.0	-0.4016	0.6805
0.95	102.0	0.6701	0.8654
0.95	114.0	0.3491	0.758
0.95	258.0	-1.1716	0.6675
0.95	270.0	-0.4031	0.6765
0.95	282.0	1.0381	0.6372
0.95	294.0	0.7864	0.7421

CLAS Physics Database