Measurement E151M3140

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_LU
ε_L:	0.0198
Q²:	0.0291 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7618

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.35	78.0	0.0657	0.2582	0.03
0.45	18.0	-0.3384	0.25	0.0308
0.45	78.0	0.0236	0.2486	0.03
0.45	270.0	-0.2085	0.2531	0.0303
0.45	282.0	-0.1694	0.2751	0.0302
0.55	78.0	-0.1746	0.2593	0.0302
0.55	126.0	0.2885	0.237	0.0306
0.55	138.0	0.1545	0.2522	0.0302
0.55	222.0	-0.1696	0.2696	0.0302
0.55	270.0	0.1192	0.2696	0.0301
0.65	138.0	0.1154	0.2605	0.0301
0.65	150.0	0.0689	0.2831	0.03
0.65	198.0	0.2947	0.2536	0.0306
0.65	210.0	-0.0263	0.2419	0.03
0.65	222.0	0.286	0.2462	0.0305
0.65	282.0	0.2439	0.276	0.0304
0.75	66.0	-0.4454	0.2474	0.0313
0.75	198.0	-0.5089	0.238	0.0317
0.75	210.0	0.088	0.236	0.0301
0.75	222.0	-0.5405	0.2033	0.0319
0.75	258.0	0.6021	0.201	0.0323
0.75	270.0	-0.1409	0.2054	0.0301
0.75	282.0	0.4619	0.243	0.0314
0.85	114.0	0.1467	0.2706	0.0301
0.85	126.0	-0.2804	0.2687	0.0305
0.85	198.0	0.4327	0.2549	0.0312
0.85	210.0	-0.2658	0.2453	0.0305
0.85	222.0	0.0561	0.2762	0.03

CLAS Physics Database