Measurement E151M811

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:	0.3721
Q²:	0.205 GeV²
W:	1415.0 GeV
E_beam:	2.2596 GeV
ε:	0.9075

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	66.0	0.0224	0.6088
0.45	282.0	-0.1018	0.6147
0.65	102.0	-0.0322	0.6555
0.65	114.0	0.9525	0.7357
0.65	258.0	-0.4114	0.6568
0.75	90.0	1.2237	0.591
0.75	102.0	0.3936	0.6137
0.75	114.0	-0.379	0.585
0.75	126.0	-0.0747	0.743
0.75	234.0	-0.5858	0.5321
0.75	246.0	0.1773	0.6187
0.75	258.0	-0.4541	0.6557
0.75	270.0	-0.9798	0.546
0.85	66.0	-1.0605	0.568
0.85	102.0	0.3074	0.6219
0.85	114.0	-0.2293	0.6748
0.85	246.0	0.2157	0.6691
0.85	258.0	-0.2655	0.6406
0.85	270.0	-0.1029	0.7276
0.85	282.0	-1.3447	0.5736
0.95	258.0	0.5648	0.9629
0.95	270.0	0.1861	1.1579
0.95	282.0	-0.196	1.0449
0.95	294.0	-0.4867	0.8992
0.25	78.0	1.0836	1.0853
0.65	102.0	-0.2079	0.9915
0.65	258.0	0.5405	0.8659
0.75	90.0	-0.6419	1.011
0.75	102.0	0.2315	1.105
0.75	114.0	-0.0209	1.176
0.75	126.0	-0.5174	1.1321
0.75	246.0	0.6531	0.8659
0.75	258.0	1.6502	0.9465
0.75	270.0	-1.2031	0.7557
0.85	102.0	-1.2361	1.1242
0.85	114.0	-1.123	1.0001
0.85	246.0	-0.6047	1.0898
0.85	258.0	1.6958	0.9805
0.85	270.0	-1.3657	0.9271
0.85	282.0	0.8332	1.0468
0.85	294.0	0.99	1.0033
0.95	66.0	3.491	3.5442
0.95	258.0	0.8939	2.9285
0.95	282.0	0.1509	2.2637

CLAS Physics Database