Measurement E151M2210

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:	0.8938
Q²:	0.7075 GeV²
W:	1325.0 GeV
E_beam:	2.999 GeV
ε:	0.8986

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	270.0	-0.2085	0.8748
0.65	306.0	-0.7719	0.7689
0.75	78.0	0.2061	0.8756
0.75	90.0	1.3071	0.8417
0.75	258.0	0.6381	0.8169
0.75	282.0	-0.7179	0.7671
0.75	294.0	-0.7376	0.7819
0.85	270.0	0.6111	0.7351
0.85	306.0	0.9673	0.7614
0.95	258.0	-0.2456	0.7068
0.95	294.0	0.4193	0.6665
0.95	318.0	-0.8388	0.7004

CLAS Physics Database