Measurement E151M1668

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:	0.0285
Q²:	0.0415 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5656

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	222.0	-0.4093	0.9635	0.0388
0.75	162.0	-0.7864	0.9189	0.0559
0.75	234.0	-0.0166	0.9948	0.03
0.75	246.0	0.3324	0.9016	0.036
0.85	246.0	-0.5325	0.8645	0.0438
0.55	222.0	-1.8403	0.7155	0.1111
0.85	222.0	-0.9748	1.1771	0.0641
0.85	234.0	-0.3523	0.9334	0.0363
0.85	246.0	0.8612	0.9669	0.0584

CLAS Physics Database