Measurement E151M1231

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:	0.3053
Q²:	0.0348 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9162

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	282.0	0.6213	0.4753
0.55	258.0	-0.6421	0.4608
0.55	270.0	-0.3624	0.4161
0.55	282.0	-0.444	0.4692
0.65	258.0	0.0735	0.4213
0.65	270.0	-0.6018	0.3156
0.75	246.0	-0.0998	0.5287
0.75	258.0	0.499	0.4485
0.75	270.0	-0.6418	0.4138
0.85	138.0	0.3974	0.5854
0.85	150.0	-0.6325	0.4535
0.85	162.0	-0.1855	0.5131
0.85	174.0	-0.3625	0.3673
0.85	186.0	-0.0937	0.3875
0.85	198.0	0.0027	0.364
0.85	210.0	-0.0686	0.4983
0.85	222.0	-0.0087	0.4907
0.95	174.0	0.8588	0.3987

CLAS Physics Database