Measurement E151M921

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:	0.0417
Q²:	0.0593 GeV²
W:	1685.0 GeV
E_beam:	2.2596 GeV
ε:	0.8141

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	126.0	1.8938	1.9632
0.55	222.0	3.5818	1.8266
0.65	126.0	-1.9032	1.6998
0.65	222.0	2.6031	1.7964
0.75	198.0	0.9983	1.8751
0.75	210.0	-0.8407	1.6264
0.75	222.0	0.5423	1.8261
0.75	270.0	2.077	1.5542
0.75	282.0	1.4412	1.425
0.85	126.0	3.3717	2.1862
0.85	210.0	0.4165	2.1091
0.85	270.0	-1.9489	1.4837
0.45	270.0	0.9515	0.6104
0.65	126.0	-0.0952	0.6521
0.65	210.0	0.1133	0.624
0.65	282.0	0.007	0.5338
0.75	198.0	2.0057	0.6882
0.75	210.0	-0.1687	0.6214
0.75	222.0	1.3163	0.6351
0.75	270.0	1.3367	0.5753
0.75	282.0	0.2428	0.5327
0.85	114.0	0.432	0.5919
0.85	234.0	0.7561	0.6707

CLAS Physics Database