Measurement E151M1228

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:	0.1911
Q²:	0.0205 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9279

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	246.0	-0.9927	0.5185	0.1159
0.55	258.0	-0.2896	0.5507	0.0443
0.55	270.0	-0.5396	0.3841	0.0678
0.55	282.0	-0.7418	0.4423	0.0889
0.65	246.0	-0.7136	0.3892	0.0859
0.65	258.0	-0.1861	0.348	0.0366
0.65	270.0	0.4596	0.3631	0.0599
0.65	282.0	0.4326	0.4537	0.0573
0.75	162.0	-0.2075	0.5193	0.038
0.75	174.0	0.5763	0.4597	0.0716
0.75	186.0	-0.5559	0.4054	0.0695
0.75	198.0	-0.0913	0.4372	0.0317
0.75	210.0	0.4428	0.4411	0.0583
0.75	222.0	0.5241	0.4785	0.0663
0.75	234.0	-0.4909	0.5398	0.063
0.75	246.0	0.2898	0.4234	0.0444
0.75	258.0	-0.7127	0.4119	0.0858
0.85	150.0	-0.8928	0.4685	0.1051
0.85	162.0	0.0836	0.4494	0.0314
0.85	174.0	0.1939	0.3656	0.0371
0.85	186.0	-0.2434	0.4415	0.0407
0.85	198.0	0.1618	0.402	0.0351
0.85	210.0	0.1364	0.4011	0.0337
0.85	222.0	-0.1826	0.5038	0.0364

CLAS Physics Database