Measurement E151M2209

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:	0.8865
Q²:	0.5925 GeV²
W:	1325.0 GeV
E_beam:	2.999 GeV
ε:	0.9152

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	78.0	-1.2831	0.7377
0.55	282.0	-0.9205	0.7526
0.65	90.0	-0.2241	0.7929
0.65	282.0	0.788	0.7577
0.75	66.0	1.4274	0.7276
0.75	78.0	-1.1867	0.7756
0.75	258.0	0.8245	0.6965
0.75	282.0	0.5395	0.5808
0.75	294.0	-0.065	0.6896
0.75	306.0	0.686	0.7919
0.85	66.0	0.6301	0.7263
0.85	78.0	0.4999	0.7517
0.85	90.0	-0.4507	0.6597
0.85	102.0	-0.8268	0.8205
0.85	114.0	0.7884	0.9478
0.85	234.0	0.5614	0.78
0.85	258.0	1.2561	0.7042
0.85	270.0	0.2429	0.6918
0.85	282.0	0.6225	0.6643
0.85	294.0	0.2893	0.7136
0.85	306.0	-0.8993	0.7312
0.85	318.0	0.5066	0.7702
0.85	330.0	0.4235	0.7232
0.95	234.0	0.9644	0.7922
0.95	246.0	0.3007	0.7169
0.95	258.0	0.2555	0.7361
0.95	270.0	0.8419	0.7692

CLAS Physics Database