Measurement E151M1342

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:	0.2235
Q²:	0.101 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.7019

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	150.0	0.726	1.055
0.65	234.0	0.8107	0.8587
0.65	246.0	1.8492	0.8106
0.65	258.0	0.9249	0.8105
0.65	270.0	-1.1485	0.7215
0.75	126.0	-1.0958	0.8517
0.75	138.0	-0.9647	1.0067
0.75	150.0	1.0949	0.934
0.75	234.0	-0.0736	0.8656
0.75	246.0	0.778	0.7797
0.75	258.0	-1.2578	0.7513
0.75	270.0	-0.1934	0.6882
0.85	126.0	-0.9242	0.9033
0.85	138.0	-0.0654	0.8412
0.85	150.0	1.1706	0.744
0.85	162.0	-1.0461	0.9401
0.85	246.0	0.1857	0.6457
0.85	258.0	0.1354	0.6561
0.85	270.0	0.2752	0.6066
0.85	282.0	1.0706	0.7229
0.95	126.0	0.101	0.7243

CLAS Physics Database