Measurement E151M328

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_UL
ε_L:	0.0233
Q²:	0.0101 GeV²
W:	1415.0 GeV
E_beam:	1.3383 GeV
ε:	0.84

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	222.0	0.0578	0.592
0.65	222.0	-0.316	0.6629
0.65	234.0	-0.7128	0.5493
0.75	234.0	-1.3176	0.5718
0.55	246.0	-0.5701	0.6853
0.65	210.0	-0.2978	0.8453
0.65	222.0	-0.1717	0.9463
0.85	222.0	-0.2492	0.9033
0.85	234.0	-0.8613	0.5241

CLAS Physics Database