Measurement E151M2111

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:	0.1135
Q²:	0.1205 GeV²
W:	1595.0 GeV
E_beam:	2.2596 GeV
ε:	0.8511

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	114.0	-0.7319	0.9291	0.0737
0.65	126.0	0.7906	0.8229	0.0786
0.75	126.0	-1.4046	0.9539	0.1325
0.75	138.0	-0.5738	1.0035	0.0607
0.75	282.0	0.6293	0.8115	0.0652
0.75	294.0	-0.6696	0.7011	0.0685
0.85	90.0	-0.6577	0.9868	0.0675
0.85	102.0	-0.6669	1.1011	0.0682
0.85	234.0	0.0787	0.8876	0.0309
0.65	222.0	-0.5046	0.9441	0.0445
0.75	210.0	-0.5867	1.0428	0.0485
0.75	222.0	-0.3313	1.0042	0.0369
0.85	90.0	-0.0001	0.9214	0.03
0.85	210.0	-0.8368	1.0952	0.0622
0.85	234.0	0.292	1.0353	0.0355
0.85	246.0	-0.2421	0.9834	0.0339

CLAS Physics Database