Measurement E151M1348

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:	0.0175
Q²:	0.0071 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7671

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	42.0	0.7431	0.8315
0.45	54.0	1.548	0.9445
0.55	30.0	0.3459	1.0086
0.55	42.0	0.3419	0.7801
0.55	54.0	0.4931	0.8466
0.55	222.0	-1.8085	0.7686
0.55	234.0	-0.6868	0.9179
0.55	246.0	-0.6389	0.6638
0.65	42.0	0.6442	0.8628
0.65	54.0	0.9123	0.8003
0.65	150.0	0.478	0.9375
0.65	222.0	0.2307	0.7089
0.65	234.0	0.9655	0.7726
0.65	246.0	-0.214	0.6802
0.65	258.0	-0.2264	0.8418
0.75	222.0	0.0434	0.8154
0.75	234.0	0.2877	0.6589
0.75	246.0	-0.6925	0.6786
0.75	258.0	0.9161	0.8889
0.85	222.0	-0.5935	0.7557
0.85	234.0	0.4871	0.7054
0.85	246.0	-0.1626	0.8759

CLAS Physics Database