Measurement E151M2280

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:	0.4832
Q²:	0.7075 GeV²
W:	1505.0 GeV
E_beam:	2.999 GeV
ε:	0.8488

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.85	258.0	-0.692	0.786
0.85	270.0	-0.4215	0.8235
0.95	258.0	-0.3472	0.8109

CLAS Physics Database