Measurement E151M1151

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:	0.082
Q²:	0.1435 GeV²
W:	1745.0 GeV
E_beam:	2.999 GeV
ε:	0.8642

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	138.0	-1.2717	0.7616
0.45	270.0	0.8015	0.9553
0.45	282.0	0.8523	0.9521
0.55	102.0	0.3122	0.9695
0.55	114.0	-0.6067	0.7797
0.55	126.0	-0.3975	0.8324
0.55	198.0	1.3607	0.9818
0.55	222.0	-0.4593	0.8948
0.65	54.0	1.349	0.9127
0.65	102.0	0.3586	0.9151
0.65	114.0	-0.2681	0.6868
0.65	126.0	-0.576	0.694
0.65	138.0	-1.34	0.7433
0.65	186.0	-0.3776	0.9148
0.65	198.0	1.0286	0.8802
0.65	210.0	0.7848	0.8221
0.65	222.0	0.777	0.8255
0.65	234.0	-0.815	0.8202
0.65	282.0	-0.2776	0.6387
0.65	294.0	-0.8963	0.6016
0.75	90.0	-0.1892	0.844
0.75	102.0	0.3527	0.8513
0.75	114.0	-0.5375	0.7528
0.75	126.0	0.6664	1.0374
0.75	186.0	0.6877	1.0495
0.75	198.0	1.5425	0.9378
0.75	210.0	0.6522	0.6999
0.75	222.0	-0.1181	0.6498
0.75	234.0	0.9863	0.8442
0.75	270.0	0.4163	0.8474
0.75	282.0	-0.809	0.6259
0.75	294.0	0.082	0.7139
0.85	78.0	1.573	0.9741
0.85	90.0	-0.3932	0.5309
0.85	102.0	-0.1453	0.6162
0.85	114.0	0.7017	0.7714
0.85	126.0	1.58	1.035
0.85	174.0	-0.858	0.7064
0.85	186.0	0.1427	0.7064
0.85	198.0	-0.2328	0.5862
0.85	210.0	0.1942	0.5359
0.85	222.0	0.0461	0.5709
0.85	234.0	0.4389	0.5796
0.85	246.0	1.1537	0.8187
0.85	258.0	0.1708	0.9153
0.85	270.0	-0.1131	0.8395
0.95	102.0	-0.0755	0.7052
0.95	174.0	0.8674	1.0262
0.95	198.0	0.2596	0.7128
0.95	210.0	0.9284	0.6741
0.95	222.0	0.3227	0.6257
0.95	234.0	-0.1716	0.6037

CLAS Physics Database