Measurement E151M1401

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:	0.1008
Q²:	0.0844 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.5659

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	42.0	0.5997	0.8974	0.074
0.55	258.0	-1.1855	0.715	0.137
0.65	234.0	-0.5806	0.8584	0.072
0.65	258.0	-0.1891	0.7324	0.0368
0.75	246.0	1.3192	0.7133	0.1518
0.75	258.0	-0.3879	0.7681	0.053
0.85	234.0	0.0989	0.8374	0.032
0.85	258.0	0.683	0.7836	0.0827

CLAS Physics Database