Measurement E151M2112

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:	0.1306
Q²:	0.1435 GeV²
W:	1595.0 GeV
E_beam:	2.2596 GeV
ε:	0.8439

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.85	234.0	-0.2105	0.8183
0.85	246.0	0.8376	0.8793
0.95	234.0	-0.4252	2.6708
0.95	258.0	0.2194	2.4248
0.65	126.0	-1.0645	0.8988
0.75	126.0	1.2747	0.8943
0.85	90.0	0.2613	0.792
0.85	222.0	-0.0036	1.0279
0.85	234.0	-0.6645	0.8992
0.85	246.0	0.8536	0.9314
0.95	258.0	-0.1952	1.555

CLAS Physics Database