Measurement E151M1240

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:	0.8733
Q²:	0.1715 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.7985

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	282.0	-0.512	0.5975
0.35	294.0	-0.0724	0.5591
0.45	282.0	0.1917	0.4668
0.45	294.0	0.2899	0.5324
0.55	270.0	-0.2159	0.4909
0.55	282.0	-0.979	0.4046
0.55	294.0	-0.0288	0.6074
0.65	270.0	0.0616	0.4498
0.65	282.0	-0.2689	0.4486
0.65	294.0	-0.6357	0.5377
0.75	270.0	-0.1423	0.4816
0.75	294.0	-0.2492	0.5637
0.85	126.0	-1.4451	0.4494
0.85	138.0	-0.3413	0.55
0.85	150.0	-0.1235	0.5441
0.85	222.0	-0.45	0.4925
0.95	114.0	-0.2635	0.51
0.95	138.0	0.3021	0.4176
0.95	150.0	0.6479	0.4345
0.95	162.0	-0.3246	0.4277
0.95	174.0	0.595	0.4076
0.95	186.0	0.3443	0.4535
0.95	198.0	0.6291	0.4508
0.95	222.0	0.2532	0.4088

CLAS Physics Database