Measurement E151M197

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_UL
ε_L:	0.0023
Q²:	0.0023 GeV²
W:	1505.0 GeV
E_beam:	1.0539 GeV
ε:	0.5471

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	42.0	0.9239	0.6259	0.1093
0.35	54.0	0.6891	0.6245	0.0839
0.35	66.0	0.3725	0.7118	0.0519
0.45	42.0	-0.4774	0.6682	0.062
0.45	54.0	0.353	0.614	0.0501
0.45	210.0	0.0016	0.6457	0.03
0.45	222.0	0.4785	0.6254	0.0622
0.45	234.0	-0.4139	0.5807	0.0558
0.55	42.0	-0.7125	0.5684	0.0864
0.55	210.0	0.3918	0.5788	0.0537
0.55	222.0	1.2445	0.6502	0.1447
0.55	234.0	-0.002	0.471	0.03
0.55	246.0	0.3203	0.6405	0.0472
0.65	222.0	0.3188	0.5184	0.0471
0.65	234.0	0.3426	0.4753	0.0492
0.65	246.0	0.3762	0.6446	0.0523
0.75	222.0	-0.2185	0.4582	0.039
0.75	234.0	-0.2011	0.5555	0.0377
0.85	222.0	-0.1523	0.5969	0.0346

CLAS Physics Database