Measurement E151M895

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:	0.0387
Q²:	0.0415 GeV²
W:	1625.0 GeV
E_beam:	2.2596 GeV
ε:	0.8586

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	198.0	-0.2191	0.7782	0.0362
0.75	66.0	0.9694	0.9146	0.0944
0.75	210.0	1.5491	0.7976	0.1461
0.75	222.0	1.2339	0.7711	0.1178
0.75	270.0	-0.404	0.6265	0.0479
0.75	282.0	0.1093	0.6486	0.0317
0.85	114.0	-0.822	0.8012	0.0816
0.85	210.0	-0.2297	0.8665	0.0367
0.85	222.0	1.3271	0.9442	0.1261
0.85	234.0	-0.6704	0.7742	0.0688
0.45	126.0	-0.5163	0.6563	0.0453
0.45	282.0	1.4555	0.6732	0.1001
0.55	78.0	-0.1639	0.6792	0.0319
0.55	138.0	-0.1771	0.7531	0.0322
0.55	210.0	0.6937	0.8709	0.0545
0.65	198.0	1.0698	0.8938	0.0763
0.75	210.0	0.0529	0.84	0.0302
0.75	222.0	-0.5173	0.6908	0.0453
0.75	282.0	0.0171	0.6707	0.03
0.75	294.0	0.2981	0.7117	0.0358
0.85	102.0	-0.5214	0.713	0.0455
0.85	114.0	-0.5117	0.7344	0.045
0.85	210.0	1.9031	0.9045	0.1284

CLAS Physics Database