Measurement E151M426

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_UL
ε_L:	0.0215
Q²:	0.0245 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.6351

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	30.0	-1.0731	0.6469
0.45	42.0	0.77	0.5671
0.55	138.0	0.8835	1.3803
0.55	150.0	-1.6556	0.5681
0.55	162.0	-0.1181	0.693
0.55	210.0	1.9575	1.4577
0.55	222.0	0.054	0.5892
0.55	234.0	3.8421	3.8421
0.65	150.0	0.0584	1.1354
0.65	210.0	-0.9493	0.676
0.65	222.0	0.0425	1.0489
0.65	234.0	1.8247	1.4332
0.75	222.0	-0.0888	0.7972
0.75	234.0	0.2292	1.0167
0.75	246.0	0.4429	1.0165
0.85	222.0	0.4071	1.0039
0.85	234.0	0.3592	0.9945
0.85	246.0	0.5529	0.9871
0.55	246.0	0.1594	0.6978
0.65	138.0	-0.6056	0.7013
0.65	150.0	-1.1715	0.6927
0.65	222.0	0.4107	0.6165
0.75	138.0	-0.6825	0.6722
0.75	210.0	0.3583	0.7124
0.75	222.0	-0.3307	0.6721
0.75	234.0	-0.3963	0.6828
0.75	246.0	-0.2105	0.6452
0.85	210.0	0.0284	0.7173
0.85	222.0	-0.435	0.6633
0.85	234.0	0.0078	0.5586
0.85	246.0	1.1135	0.5814

CLAS Physics Database