Measurement E151M2501

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:	0.4755
Q²:	0.1205 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.7913

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.15	42.0	0.071	0.2657	0.03
0.55	270.0	0.188	0.2118	0.0302
0.55	282.0	-0.0396	0.2503	0.03
0.65	258.0	-0.033	0.2448	0.03
0.65	270.0	0.0118	0.1789	0.03
0.65	282.0	-0.1551	0.1982	0.0302
0.65	294.0	0.3713	0.2366	0.0309
0.75	258.0	-0.0792	0.2205	0.03
0.75	270.0	-0.2868	0.2091	0.0305
0.75	282.0	-0.3015	0.2068	0.0306
0.75	294.0	0.0422	0.2465	0.03
0.85	114.0	0.2174	0.2146	0.0303
0.85	138.0	-0.2354	0.1977	0.0304
0.85	150.0	0.672	0.1681	0.0329
0.85	162.0	0.1896	0.222	0.0302
0.85	174.0	0.2	0.2525	0.0303
0.85	258.0	-0.1996	0.2277	0.0303
0.85	270.0	-0.0577	0.2088	0.03
0.85	282.0	-0.3623	0.2001	0.0309
0.85	294.0	-0.3104	0.2569	0.0306
0.95	162.0	0.3102	0.2386	0.0306
0.95	174.0	0.0154	0.2366	0.03
0.95	198.0	-0.0322	0.2558	0.03
0.95	210.0	0.0987	0.2548	0.0301

CLAS Physics Database