Measurement E151M1328

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:	0.0258
Q²:	0.0084 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8064

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	42.0	-0.4493	0.9085	0.0589
0.35	54.0	0.4669	0.9691	0.0606
0.45	42.0	-0.2001	0.8453	0.0375
0.45	54.0	-0.7286	0.7642	0.0875
0.55	30.0	-1.8871	0.816	0.2149
0.55	42.0	-0.0309	0.7079	0.0302
0.55	54.0	-0.897	0.8121	0.1055
0.55	222.0	-1.5277	0.8261	0.1749
0.55	234.0	-0.3549	0.7225	0.05
0.55	246.0	0.8765	0.7552	0.1033
0.55	258.0	-1.0479	0.8162	0.1219
0.65	30.0	0.4359	0.9655	0.0576
0.65	42.0	0.7651	0.7341	0.0914
0.65	54.0	-0.3613	0.7573	0.0506
0.65	150.0	-0.1011	0.9099	0.0321
0.65	162.0	0.4099	0.8983	0.0551
0.65	174.0	-0.5311	0.891	0.067
0.65	222.0	-1.3513	0.615	0.1553
0.65	234.0	0.1154	0.5784	0.0327
0.65	246.0	-1.2556	0.6272	0.1448
0.65	258.0	-0.7158	0.807	0.0861
0.75	138.0	0.8957	0.8476	0.1054
0.75	150.0	0.2027	0.9397	0.0377
0.75	210.0	0.8632	0.8202	0.1019
0.75	222.0	0.3119	0.6344	0.0462
0.75	234.0	-0.2644	0.5701	0.0423
0.75	246.0	-0.2849	0.5029	0.044
0.75	258.0	-0.9557	0.722	0.1119
0.85	222.0	-0.8399	0.5767	0.0994
0.85	234.0	0.1758	0.6259	0.036
0.85	246.0	0.2273	0.5888	0.0395
0.85	258.0	-0.3084	0.8035	0.0459

CLAS Physics Database