Measurement E151M2047

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_LL
ε_L:	0.3245
Q²:	0.205 GeV²
W:	1445.0 GeV
E_beam:	2.2596 GeV
ε:	0.8968

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	102.0	0.2679	0.6682
0.65	114.0	2.6644	0.999
0.65	246.0	0.3436	0.6659
0.75	90.0	0.6503	0.7199
0.75	102.0	-0.3928	0.5804
0.75	114.0	-0.3743	0.6256
0.75	126.0	0.1919	0.7189
0.75	138.0	-3.4342	3.4342
0.75	234.0	0.1224	0.8267
0.75	246.0	0.9459	0.5969
0.75	258.0	-0.3611	0.5789
0.85	114.0	-1.6102	1.4271
0.85	246.0	0.4961	1.1014
0.85	258.0	-0.0541	1.1034
0.85	270.0	-0.6435	1.1145
0.95	246.0	1.5311	3.2149
0.95	270.0	2.677	3.3871
0.95	282.0	-2.1739	2.8325
0.75	270.0	0.3629	0.8816
0.85	66.0	0.2315	0.8313
0.85	102.0	0.9142	0.8524
0.85	114.0	-0.6054	0.8328
0.85	126.0	-0.2599	0.7619
0.85	222.0	-0.5365	0.9431
0.85	246.0	-1.4448	0.7384
0.85	258.0	0.8464	0.7365
0.85	282.0	0.5673	0.862
0.95	222.0	2.3983	1.4558
0.95	258.0	1.4422	1.3386
0.95	270.0	2.0013	1.1706
0.95	282.0	-0.1585	1.0513

CLAS Physics Database