Measurement E151M161

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:	0.1433
Q²:	0.101 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.6028

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	246.0	0.7303	0.7447
0.55	258.0	-0.2596	0.7577
0.55	270.0	-0.2776	0.6932
0.65	150.0	-0.0296	0.862
0.65	222.0	0.4859	0.8326
0.65	234.0	1.1111	0.796
0.65	246.0	0.0339	0.6885
0.65	258.0	-0.3416	0.5616
0.65	270.0	-0.7993	0.6571
0.75	150.0	-0.5341	0.8406
0.75	162.0	0.9283	0.92
0.75	234.0	0.4217	0.6829
0.75	246.0	-0.245	0.7062
0.75	258.0	0.7579	0.7104
0.75	270.0	0.0765	0.7106
0.85	234.0	1.2201	0.7739
0.85	246.0	1.3317	0.6823
0.85	258.0	-0.15	0.704
0.85	270.0	0.0944	0.6525
0.85	282.0	-1.4739	0.5522

CLAS Physics Database