Measurement E151M1512

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:	0.0402
Q²:	0.0121 GeV²
W:	1355.0 GeV
E_beam:	1.3383 GeV
ε:	0.8877

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	222.0	0.4366	0.6994	0.0398
0.65	234.0	1.5768	0.5935	0.0992
0.65	246.0	-0.6381	0.6849	0.0486
0.75	138.0	-0.5927	0.7916	0.0465
0.75	222.0	0.6045	0.8031	0.047
0.75	234.0	-0.6089	0.6914	0.0472
0.75	246.0	-0.4427	0.7121	0.0401
0.85	234.0	0.6259	0.7451	0.048
0.85	246.0	0.5569	0.7759	0.0449
0.55	246.0	0.9022	1.1244	0.0604
0.65	234.0	1.0288	0.8093	0.0669
0.75	234.0	-1.6145	0.604	0.0986
0.75	246.0	1.064	0.8044	0.0688
0.85	234.0	0.7224	1.1515	0.0516

CLAS Physics Database