Measurement E151M1238

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:	0.7473
Q²:	0.1205 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.8436

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	282.0	-0.0863	0.5585	0.0315
0.45	282.0	-0.5518	0.4731	0.0691
0.45	294.0	-0.7743	0.5205	0.0923
0.55	270.0	-0.4606	0.4819	0.06
0.55	282.0	0.2845	0.4637	0.0439
0.55	294.0	-1.1142	0.4788	0.1292
0.65	270.0	-0.5166	0.4792	0.0655
0.65	282.0	-0.6308	0.433	0.0772
0.65	294.0	-0.1096	0.543	0.0324
0.75	270.0	-0.941	0.4577	0.1103
0.75	282.0	-0.3701	0.4338	0.0514
0.85	138.0	1.7531	1.7531	0.2
0.95	126.0	-0.4411	0.4617	0.0581
0.95	138.0	1.0547	0.394	0.1227
0.95	150.0	0.399	0.4074	0.0541
0.95	162.0	-0.1169	0.371	0.0328
0.95	174.0	0.151	0.3787	0.0345
0.95	186.0	0.8813	0.3844	0.1038
0.95	198.0	0.4443	0.4815	0.0584
0.95	210.0	-0.1535	0.4304	0.0346
0.95	222.0	-0.3892	0.464	0.0532

CLAS Physics Database