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	syst. uncert.
0.65	102.0	0.2679	0.6682	0.0347
0.65	114.0	2.6644	0.999	0.2467
0.65	246.0	0.3436	0.6659	0.0494
0.75	90.0	0.6503	0.7199	0.0519
0.75	102.0	-0.3928	0.5804	0.043
0.75	114.0	-0.3743	0.6256	0.059
0.75	126.0	0.1919	0.7189	0.041
0.75	138.0	-3.4342	3.4342	0.317
0.75	234.0	0.1224	0.8267	0.031
0.75	246.0	0.9459	0.5969	0.1117
0.75	258.0	-0.3611	0.5789	0.0918
0.85	114.0	-1.6102	1.4271	0.151
0.85	246.0	0.4961	1.1014	0.0546
0.85	258.0	-0.0541	1.1034	0.0304
0.85	270.0	-0.6435	1.1145	0.0663
0.95	246.0	1.5311	3.2149	0.1439
0.95	270.0	2.677	3.3871	0.2478
0.95	282.0	-2.1739	2.8325	0.202
0.75	270.0	0.3629	0.8816	0.0382
0.85	66.0	0.2315	0.8313	0.0336
0.85	102.0	0.9142	0.8524	0.0666
0.85	114.0	-0.6054	0.8328	0.0495
0.85	126.0	-0.2599	0.7619	0.0344
0.85	222.0	-0.5365	0.9431	0.046
0.85	246.0	-1.4448	0.7384	0.0987
0.85	258.0	0.8464	0.7365	0.0627
0.85	282.0	0.5673	0.862	0.0476
0.95	222.0	2.3983	1.4558	0.1589
0.95	258.0	1.4422	1.3386	0.0985
0.95	270.0	2.0013	1.1706	0.1336
0.95	282.0	-0.1585	1.0513	0.0317

CLAS Physics Database