Measurement E151M498

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:	0.9096
Q²:	0.2915 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.9062

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.25	66.0	-0.0823	0.4957	0.0304
0.35	66.0	-0.6797	0.4959	0.0513
0.55	282.0	0.1893	0.5407	0.0322
0.65	270.0	0.8771	0.5408	0.0615
0.65	282.0	0.189	0.4295	0.0321
0.65	294.0	0.0503	0.5391	0.0302
0.75	78.0	0.4423	0.6373	0.0404
0.75	90.0	-0.5723	0.4357	0.0461
0.75	102.0	1.2384	0.5588	0.0815
0.75	258.0	1.3475	0.549	0.0877
0.75	270.0	-0.1502	0.5241	0.0314
0.75	282.0	-0.0312	0.4955	0.0301
0.75	294.0	-0.9486	0.4179	0.0653
0.85	66.0	-0.0036	0.6038	0.03
0.85	78.0	0.7042	0.4685	0.0525
0.85	90.0	0.5347	0.6936	0.0444
0.85	102.0	-0.3488	0.492	0.0368
0.85	114.0	-0.6143	0.4567	0.0481
0.85	246.0	-0.3962	0.4972	0.0386
0.85	258.0	0.2131	0.5331	0.0327
0.85	270.0	-0.0578	0.5468	0.0302
0.85	282.0	0.0734	0.4455	0.0303
0.85	294.0	0.8286	0.5262	0.0589
0.95	90.0	-0.023	0.483	0.03
0.95	126.0	-0.3785	0.4172	0.0379
0.95	150.0	-0.2977	0.5219	0.0351
0.95	294.0	1.2301	0.471	0.081

CLAS Physics Database