Measurement E151M178

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:	0.089
Q²:	0.0707 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.5838

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.15	42.0	0.0961	0.8507	0.0319
0.25	54.0	-0.0301	0.8536	0.0302
0.35	42.0	-1.2524	0.6214	0.1456
0.45	30.0	1.3606	0.8077	0.1577
0.45	42.0	-0.7524	0.692	0.0907
0.45	54.0	0.6136	0.8174	0.076
0.45	234.0	-1.5927	0.5811	0.1837
0.45	258.0	-0.1451	0.7849	0.0342
0.55	222.0	-0.5067	0.7206	0.065
0.55	234.0	0.2256	0.5859	0.0395
0.55	246.0	0.3226	0.6243	0.0474
0.55	258.0	-0.3271	0.688	0.0478
0.55	270.0	0.4275	0.774	0.0571
0.65	150.0	0.703	0.8005	0.0854
0.65	162.0	-1.968	0.557	0.2259
0.65	222.0	0.9836	0.7442	0.1159
0.65	234.0	0.4399	0.6799	0.0583
0.65	246.0	0.9362	0.6566	0.1107
0.65	258.0	0.7327	0.641	0.0886
0.65	270.0	0.247	0.7298	0.0411
0.75	138.0	-0.8278	0.6463	0.0988
0.75	174.0	-0.4852	0.7216	0.0628
0.75	222.0	0.2216	0.726	0.0392
0.75	234.0	-0.0949	0.6367	0.0319
0.75	246.0	0.6116	0.5225	0.0758
0.75	258.0	0.5987	0.5917	0.0744
0.75	270.0	0.3663	0.6515	0.0513
0.85	234.0	-0.2105	0.6424	0.0384
0.85	246.0	0.7785	0.5642	0.0935
0.85	258.0	1.0199	0.4963	0.1199
0.85	270.0	1.1447	0.6015	0.1336
0.95	138.0	-0.4163	0.5987	0.0561

CLAS Physics Database