Measurement E151M670

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:	0.0309
Q²:	0.0348 GeV²
W:	1625.0 GeV
E_beam:	1.9889 GeV
ε:	0.8115

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	78.0	-1.082	0.5892
0.35	270.0	0.8251	0.6319
0.35	282.0	0.2126	0.6795
0.45	18.0	-0.0613	0.7165
0.45	30.0	-0.4445	0.7285
0.45	66.0	1.4064	0.9512
0.45	78.0	1.0524	0.7387
0.45	258.0	0.0547	0.7094
0.45	270.0	-0.8148	0.5255
0.45	282.0	0.1529	0.6751
0.45	330.0	-0.4683	0.7229
0.55	78.0	1.3006	0.8443
0.55	90.0	-1.1398	0.6566
0.55	114.0	0.785	0.7818
0.55	126.0	-0.5696	0.5641
0.55	138.0	0.0499	0.7986
0.55	150.0	-1.0725	0.6691
0.55	198.0	0.4348	0.7474
0.55	210.0	0.1017	0.7665
0.55	222.0	0.6016	0.771
0.55	258.0	-0.3162	0.6291
0.55	270.0	0.8895	0.6561
0.55	282.0	0.1312	0.7983
0.65	78.0	-0.5163	0.7081
0.65	114.0	0.2195	0.8382
0.65	126.0	-0.9838	0.5127
0.65	138.0	-1.2088	0.561
0.65	150.0	-0.2263	0.7363
0.65	198.0	1.6608	0.8374
0.65	210.0	0.6486	0.7113
0.65	222.0	0.7567	0.6969
0.65	234.0	1.3306	0.9012
0.65	270.0	-0.2925	0.6345
0.65	282.0	-0.0698	0.5967
0.75	66.0	-1.1716	0.6237
0.75	78.0	-0.2325	0.7882
0.75	198.0	-0.217	0.6208
0.75	210.0	0.3459	0.6179
0.75	222.0	0.5517	0.7042
0.75	234.0	0.6232	0.7061
0.75	246.0	-0.3528	0.738
0.75	270.0	-0.6268	0.485
0.75	282.0	-0.1702	0.5489
0.85	114.0	1.5465	0.6752
0.85	126.0	-0.1256	0.6808
0.85	198.0	0.4801	0.719
0.85	210.0	0.0452	0.5694
0.85	222.0	-1.0187	0.5416
0.85	234.0	0.536	0.7383
0.85	258.0	0.4345	0.7432
0.85	270.0	-0.2635	0.6121
0.85	282.0	0.9176	0.7419

CLAS Physics Database