Measurement E151M100

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:	0.3089
Q²:	0.1205 GeV²
W:	1325.0 GeV
E_beam:	1.0539 GeV
ε:	0.7217

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	258.0	-0.3532	0.6374	0.0502
0.55	270.0	-0.8324	0.5213	0.0993
0.65	246.0	-0.8079	0.4639	0.0967
0.65	258.0	-0.6301	0.5769	0.0777
0.65	270.0	0.1143	0.5743	0.0327
0.65	282.0	-0.2161	0.6591	0.0388
0.75	138.0	-1.1961	0.5918	0.1393
0.75	150.0	-0.1649	0.75	0.0354
0.75	246.0	-0.0598	0.5701	0.0308
0.75	258.0	0.7429	0.7002	0.0897
0.75	270.0	0.1505	0.5895	0.0345
0.75	282.0	0.6915	0.6254	0.0842
0.75	294.0	-0.359	0.7058	0.0507
0.85	126.0	0.1889	0.7187	0.0369
0.85	138.0	-0.4399	0.5951	0.0583
0.85	150.0	-0.2035	0.6513	0.0379
0.85	162.0	1.1685	0.6648	0.1363
0.85	186.0	0.8649	0.6712	0.1029
0.85	246.0	-0.0604	0.6962	0.0308
0.85	258.0	-0.088	0.5524	0.0316
0.85	270.0	0.5401	0.6153	0.0684
0.85	282.0	-0.9285	0.4495	0.1098
0.85	294.0	-0.2612	0.6304	0.0422
0.95	102.0	-0.2219	0.63	0.0392
0.95	114.0	1.8563	0.7637	0.2133
0.95	138.0	1.1937	0.6611	0.1391
0.95	162.0	-0.286	0.5654	0.0443
0.95	174.0	-0.7715	0.5057	0.0928
0.95	258.0	-0.3228	0.5512	0.0474

CLAS Physics Database