Measurement E151M362

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:	0.1952
Q²:	0.1435 GeV²
W:	1445.0 GeV
E_beam:	1.3383 GeV
ε:	0.7052

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	138.0	0.5698	0.7185	0.0463
0.65	234.0	0.8723	0.7154	0.0618
0.65	246.0	-0.3632	0.6625	0.0375
0.75	138.0	-1.1372	0.681	0.0765
0.75	222.0	0.4954	0.6995	0.0429
0.75	246.0	-1.057	0.5768	0.072
0.75	258.0	-0.3713	0.6801	0.0378
0.85	258.0	0.7575	0.6938	0.0557
0.85	270.0	0.1361	0.6936	0.0312
0.95	90.0	-0.665	0.5786	0.0509
0.55	246.0	0.7724	1.214	0.0554
0.65	246.0	-0.1816	0.7702	0.0319
0.65	258.0	-0.7873	0.6053	0.0561
0.75	138.0	0.9019	1.3243	0.062
0.75	222.0	2.1107	1.262	0.1306
0.75	234.0	0.8695	1.1926	0.0603
0.75	246.0	-0.3268	0.8407	0.0359
0.85	246.0	0.9139	1.1304	0.0627
0.85	258.0	-0.1271	0.8173	0.031
0.85	270.0	0.1236	0.83	0.0309

CLAS Physics Database