Measurement E151M2301

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_LL
ε_L:	0.2981
Q²:	0.348 GeV²
W:	1565.0 GeV
E_beam:	2.999 GeV
ε:	0.8936

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	282.0	-1.2531	0.9943
0.35	282.0	-1.2966	0.8178
0.45	90.0	0.2038	0.9262
0.45	114.0	-0.6852	1.0008
0.45	282.0	0.2695	0.9578
0.55	90.0	0.0494	0.8499
0.55	102.0	0.1991	1.0054
0.55	114.0	0.8766	0.9279
0.65	90.0	-0.5054	0.7233
0.65	102.0	1.2528	0.7947
0.65	114.0	-0.0476	0.7294
0.65	126.0	-0.6693	0.7717
0.65	222.0	-0.2484	1.0177
0.65	234.0	0.3202	1.0121
0.65	306.0	-0.7645	0.8206
0.75	66.0	-0.039	0.8555
0.75	78.0	0.9163	0.9627
0.75	90.0	-0.3083	0.7897
0.75	102.0	0.3339	0.7037
0.75	114.0	0.0695	0.6782
0.75	126.0	-0.464	1.0387
0.75	198.0	-0.0334	1.0387
0.75	210.0	2.149	0.683
0.75	222.0	0.3132	0.852
0.75	234.0	-0.6753	0.7986
0.75	246.0	-0.7628	0.6958
0.75	258.0	0.3051	0.8052
0.85	54.0	0.5976	0.7325
0.85	66.0	0.7399	0.7265
0.85	78.0	-0.8262	0.6896
0.85	102.0	0.007	0.7848
0.85	114.0	-0.3327	0.8237
0.85	198.0	1.3432	0.8785
0.85	210.0	-0.9914	0.6617
0.85	222.0	0.7568	0.8342
0.85	234.0	0.3936	0.6018
0.85	246.0	-0.4905	0.6575
0.85	258.0	-0.6535	0.5647
0.85	270.0	-0.0635	0.5989
0.85	282.0	-1.1646	0.7135
0.85	294.0	0.0513	0.7633
0.95	78.0	-0.5743	0.9153
0.95	198.0	0.1631	0.9279
0.95	210.0	-0.3227	0.8008
0.95	222.0	1.0224	0.7264
0.95	234.0	0.3785	0.6648
0.95	246.0	-0.4527	0.6561
0.95	258.0	-0.0827	0.6354
0.95	270.0	-0.7499	0.6251
0.95	282.0	0.786	0.6968
0.95	294.0	0.2996	0.5786
0.95	306.0	0.6714	0.6566
0.95	318.0	0.2168	0.6474

CLAS Physics Database