Measurement E151M211

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:	0.8855
Q²:	0.1435 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.8961

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	282.0	0.7142	0.429
0.45	282.0	-0.0511	0.4431
0.55	270.0	-0.4657	0.4442
0.55	282.0	-0.1651	0.3529
0.55	294.0	0.2701	0.4564
0.65	282.0	-0.379	0.3932
0.75	270.0	-0.4384	0.4495
0.85	90.0	-0.0323	0.4882
0.95	102.0	0.0888	0.3885
0.95	114.0	-0.3788	0.3737
0.95	150.0	-0.1749	0.3478
0.35	294.0	0.935	1.034
0.45	282.0	0.0362	0.6856
0.45	294.0	-0.2134	0.5757
0.55	270.0	-0.4365	0.4893
0.55	282.0	-0.8407	0.3358
0.55	294.0	-0.29	0.5666
0.65	282.0	0.3319	0.5745
0.65	294.0	-0.4329	0.4825
0.75	270.0	-0.3115	0.5426
0.85	114.0	1.3874	0.982
0.85	126.0	0.693	0.8661
0.95	102.0	0.933	0.6882
0.95	114.0	0.1007	0.6401

CLAS Physics Database