Measurement E151M840

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:	0.3175
Q²:	0.2445 GeV²
W:	1475.0 GeV
E_beam:	2.2596 GeV
ε:	0.8743

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	90.0	1.539	1.2996	0.1452
0.75	102.0	-2.798	0.7957	0.26
0.75	126.0	1.1488	1.4107	0.1102
0.75	234.0	-1.0974	0.983	0.1056
0.75	258.0	-1.1117	0.8617	0.1069
0.85	258.0	0.3438	1.2811	0.0437
0.85	270.0	-1.8519	0.8645	0.1735
0.95	270.0	4.5086	3.5764	0.4172
0.95	282.0	-3.0246	2.9547	0.2808
0.95	294.0	0.7002	2.7076	0.0712
0.65	102.0	0.2233	0.6614	0.0334
0.75	114.0	-0.6681	0.5403	0.0531
0.75	234.0	0.085	0.6218	0.0305
0.85	126.0	-0.6241	0.6995	0.0508
0.85	234.0	0.784	0.8332	0.0596
0.85	246.0	-0.6409	0.5372	0.0517
0.85	258.0	0.7646	0.7337	0.0585
0.85	270.0	0.2377	0.6978	0.0338
0.95	270.0	2.9685	1.0919	0.1971

CLAS Physics Database