Measurement E151M475

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:	0.4081
Q²:	0.0593 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9696

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	66.0	-0.4539	0.4454	0.0409
0.35	78.0	-0.2033	0.5014	0.0325
0.45	66.0	0.9662	0.5229	0.0663
0.45	78.0	0.1816	0.3835	0.032
0.55	78.0	-0.1381	0.3479	0.0312
0.55	90.0	0.6798	0.3799	0.0513
0.55	270.0	0.6685	0.5452	0.0507
0.65	90.0	-0.2713	0.3745	0.0343
0.65	258.0	-0.2187	0.3252	0.0328
0.65	270.0	0.1734	0.3627	0.0318
0.75	102.0	0.53	0.6536	0.0442
0.75	114.0	0.6122	0.4949	0.048
0.75	126.0	1.3366	0.4772	0.0871
0.75	234.0	-0.0177	0.491	0.03
0.75	246.0	0.3034	0.4394	0.0353
0.75	258.0	-0.3662	0.2914	0.0374
0.75	270.0	-0.7866	0.3453	0.0567
0.85	102.0	0.4184	0.5935	0.0394
0.85	114.0	0.1383	0.4165	0.0312
0.85	126.0	-0.2702	0.3175	0.0343
0.85	138.0	0.1514	0.3748	0.0314
0.85	150.0	0.7893	0.3764	0.0568
0.85	162.0	0.4867	0.4943	0.0423
0.85	174.0	0.3414	0.4737	0.0366
0.85	186.0	0.658	0.5041	0.0502
0.85	198.0	-0.8358	0.4345	0.0593
0.85	210.0	0.5282	0.5627	0.0441
0.85	222.0	-0.1805	0.4648	0.032
0.85	234.0	-0.3993	0.4002	0.0387
0.85	246.0	-0.5028	0.3437	0.043
0.85	258.0	-0.0694	0.4322	0.0303
0.95	114.0	-0.015	0.4916	0.03
0.95	126.0	0.1505	0.405	0.0314
0.95	138.0	-0.7682	0.3037	0.0557
0.95	150.0	-0.3253	0.3179	0.036
0.95	162.0	-0.3416	0.3594	0.0366
0.95	174.0	0.9644	0.4284	0.0662
0.95	186.0	0.0537	0.4533	0.0302
0.95	198.0	-0.5814	0.4123	0.0465
0.95	210.0	-0.3895	0.3738	0.0383

CLAS Physics Database