Measurement E151M1614

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:	0.0436
Q²:	0.0348 GeV²
W:	1505.0 GeV
E_beam:	1.3383 GeV
ε:	0.7173

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	30.0	0.8787	1.0079
0.35	42.0	-0.4136	0.6454
0.45	18.0	-0.235	1.1242
0.45	30.0	-1.0111	0.7171
0.45	42.0	0.5734	0.5356
0.45	150.0	-0.1667	0.7992
0.45	222.0	1.3949	0.6516
0.45	234.0	-0.3879	0.6443
0.45	246.0	-0.6295	0.6118
0.55	30.0	-0.4244	1.1084
0.55	42.0	-0.5606	0.833
0.55	126.0	-0.4751	1.1284
0.55	138.0	0.1763	0.5265
0.55	150.0	-0.6672	0.5929
0.55	162.0	-0.2922	0.7618
0.55	210.0	1.0476	0.8149
0.55	222.0	-0.2571	0.498
0.55	234.0	-0.4358	0.511
0.55	246.0	-0.214	0.5464
0.65	126.0	0.3884	0.6339
0.65	138.0	-0.3309	0.4587
0.65	150.0	-0.2436	0.5227
0.65	162.0	0.7063	0.6228
0.65	210.0	0.6126	0.5224
0.65	222.0	-0.1574	0.4832
0.65	234.0	-0.3655	0.425
0.65	246.0	-0.3369	0.5106
0.75	126.0	0.3611	0.81
0.75	138.0	-1.206	0.5077
0.75	150.0	-0.3085	0.4933
0.75	162.0	-0.4684	0.915
0.75	210.0	-1.1682	0.5206
0.75	222.0	-0.8356	0.3833
0.75	234.0	-0.4001	0.4343
0.75	246.0	0.4576	0.4852
0.75	258.0	1.0317	0.5314
0.85	114.0	-0.1193	0.5851
0.85	126.0	0.6624	0.696
0.85	210.0	-0.4224	0.5157
0.85	222.0	-0.2793	0.473
0.85	234.0	-0.613	0.4242
0.85	246.0	-0.0834	0.4287
0.85	258.0	-0.8453	0.4567
0.95	222.0	0.0787	0.7571
0.95	234.0	1.3035	0.7239
0.95	246.0	-0.3999	0.6364

CLAS Physics Database