Measurement E151M731

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:	0.4745
Q²:	0.0707 GeV²
W:	1235.0 GeV
E_beam:	2.2596 GeV
ε:	0.9751

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	78.0	0.1044	0.3527
0.55	78.0	-0.1811	0.3774
0.65	270.0	0.257	1.7492
0.75	258.0	-0.4491	1.9947
0.75	270.0	-1.3859	1.8702
0.85	114.0	3.2287	3.2763
0.85	126.0	-1.5659	2.2189
0.85	138.0	-3.7694	2.5773
0.85	150.0	-0.9906	3.0366
0.95	126.0	-5.849	7.4094
0.95	138.0	3.5106	8.2701
0.95	150.0	1.9993	8.29
0.95	162.0	-0.8251	7.1621
0.55	270.0	0.3964	0.4754
0.65	90.0	0.2367	0.4555
0.65	270.0	0.7994	0.4555
0.75	246.0	-0.3697	0.4216
0.75	258.0	0.3092	0.4046
0.75	270.0	0.6092	0.4021
0.85	126.0	0.3566	0.4604
0.85	138.0	0.3636	0.4503
0.85	150.0	-0.1782	0.5565
0.85	246.0	0.4584	0.4633
0.85	258.0	-0.9513	0.3304
0.95	114.0	2.2034	0.7787
0.95	126.0	1.0612	0.8506
0.95	150.0	-0.1921	0.6677
0.95	162.0	-0.5104	0.7622
0.95	174.0	0.701	0.9402
0.95	186.0	-0.1837	0.8767

CLAS Physics Database