Measurement E151M3122

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:	0.1066
Q²:	0.1435 GeV²
W:	1625.0 GeV
E_beam:	1.9889 GeV
ε:	0.7644

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.45	270.0	0.0033	0.256
0.55	126.0	0.1128	0.2661
0.55	270.0	0.2976	0.2813
0.65	114.0	-0.235	0.2371
0.65	222.0	0.1375	0.2589
0.65	294.0	-0.4376	0.2258
0.75	126.0	0.0812	0.2635
0.75	210.0	-0.0023	0.2593
0.75	222.0	0.6604	0.19
0.75	234.0	0.3755	0.2082
0.85	90.0	0.3159	0.2412
0.85	114.0	-0.002	0.2617
0.85	210.0	-0.3204	0.2336
0.85	222.0	-0.2642	0.2731
0.85	234.0	0.1405	0.2731
0.85	258.0	0.1132	0.2844

CLAS Physics Database