Measurement E151M1419

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:	0.0023
Q²:	0.0023 GeV²
W:	1505.0 GeV
E_beam:	1.0539 GeV
ε:	0.5471

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	42.0	-0.4535	0.682
0.35	54.0	0.0707	0.6815
0.35	66.0	0.5563	0.7878
0.45	42.0	-1.0814	0.7403
0.45	54.0	0.4975	0.6734
0.45	210.0	1.5633	0.6449
0.45	222.0	0.1803	0.6818
0.45	234.0	0.1927	0.6927
0.55	42.0	-1.7173	0.6234
0.55	210.0	-1.3637	0.5848
0.55	222.0	-0.8817	0.6703
0.55	234.0	-0.5787	0.5246
0.55	246.0	-0.6599	0.7152
0.65	222.0	1.3088	0.5112
0.65	234.0	-0.8886	0.5067
0.65	246.0	-1.4998	0.5908
0.75	222.0	-0.1557	0.5372
0.75	234.0	0.393	0.6333
0.85	222.0	-0.2855	0.6853

CLAS Physics Database