Measurement E151M2408

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:	0.044
Q²:	0.101 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.8284

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	102.0	1.2358	1.0458
0.75	114.0	-0.3243	1.0757
0.75	198.0	-0.9655	1.0495
0.75	210.0	-2.3969	0.7488
0.75	222.0	0.9222	0.9993
0.75	270.0	1.5085	0.9081
0.75	282.0	0.7074	0.9778
0.85	90.0	0.3847	0.9887
0.85	102.0	-0.4483	0.81
0.85	114.0	0.0465	0.8644
0.85	126.0	0.7159	1.042
0.85	186.0	-1.3201	0.8191
0.85	198.0	0.3023	0.8869
0.85	210.0	-0.073	0.8835
0.85	222.0	0.3033	0.9104
0.85	270.0	0.8529	1.0777
0.95	210.0	0.7378	1.0152

CLAS Physics Database