Measurement E151M1547

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:	0.3102
Q²:	0.1715 GeV²
W:	1385.0 GeV
E_beam:	1.3383 GeV
ε:	0.7512

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	234.0	2.0479	0.5893	0.1228
0.75	246.0	0.851	0.9326	0.0579
0.85	282.0	0.699	1.0549	0.0505
0.95	282.0	-0.8601	0.8805	0.0583
0.65	246.0	1.1314	0.7296	0.0741
0.75	258.0	-0.4211	0.8767	0.0392
0.75	270.0	0.0341	0.8617	0.0301
0.85	138.0	1.3089	0.7222	0.084
0.85	246.0	1.4334	0.7869	0.091
0.85	258.0	-0.2261	0.7526	0.0329
0.85	270.0	1.2828	0.6949	0.0825
0.95	258.0	0.9845	0.6993	0.0662

CLAS Physics Database