Measurement E151M2548

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_LU
ε_L:	0.0183
Q²:	0.0059 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8092

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.45	54.0	0.0955	0.2572	0.0301
0.55	54.0	0.0746	0.2339	0.03
0.55	234.0	-0.149	0.2588	0.0301
0.55	246.0	0.0086	0.2193	0.03
0.65	54.0	-0.0426	0.2369	0.03
0.65	222.0	0.297	0.23	0.0306
0.65	234.0	-0.1765	0.2019	0.0302
0.65	246.0	0.3318	0.1969	0.0307
0.65	258.0	0.2068	0.2461	0.0303
0.75	222.0	0.164	0.2492	0.0302
0.75	234.0	0.0403	0.2585	0.03
0.75	246.0	-0.3832	0.1722	0.031
0.85	234.0	-0.1914	0.2146	0.0302
0.85	246.0	-0.1173	0.208	0.0301

CLAS Physics Database