Measurement E151M2329

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:	0.3108
Q²:	0.5925 GeV²
W:	1625.0 GeV
E_beam:	2.999 GeV
ε:	0.8246

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	102.0	1.4696	0.9509	0.1107
0.75	234.0	-0.5305	1.0077	0.0488
0.85	54.0	1.8379	0.8145	0.1366
0.85	222.0	0.4665	0.8749	0.0452
0.85	234.0	0.502	0.9737	0.0472
0.85	246.0	-0.7125	0.9153	0.0597
0.85	258.0	0.1103	0.8544	0.031
0.85	270.0	1.3441	0.7982	0.102
0.85	282.0	0.1306	0.9134	0.0315
0.95	270.0	0.7273	0.8428	0.0607
0.95	282.0	-1.1897	0.7048	0.0913
0.95	294.0	0.0764	0.8334	0.0305
0.95	306.0	1.5601	0.8695	0.117
0.95	318.0	-0.1907	0.798	0.033

CLAS Physics Database