Measurement E151M1259

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:	0.6489
Q²:	0.1435 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.798

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	294.0	-0.0929	0.6658
0.35	282.0	-0.4527	0.5581
0.35	294.0	-0.4121	0.6545
0.45	270.0	0.5983	0.5718
0.45	282.0	-0.8325	0.4551
0.45	294.0	0.0085	0.6325
0.55	270.0	0.0694	0.4956
0.55	282.0	0.5408	0.4431
0.55	294.0	0.6673	0.5948
0.65	258.0	0.2174	0.4723
0.65	270.0	0.1813	0.4876
0.65	282.0	-0.261	0.5204
0.65	294.0	-0.0105	0.5129
0.75	258.0	0.1516	0.5651
0.75	270.0	0.1148	0.5574
0.75	282.0	1.07	0.445
0.75	294.0	0.2491	0.5409
0.85	114.0	0.1813	0.5617
0.85	138.0	-0.8832	0.597
0.85	150.0	-0.1614	0.5612
0.85	162.0	-0.2732	0.6059
0.85	174.0	0.845	0.5979
0.85	198.0	-0.9626	0.4983
0.85	210.0	0.7635	0.5642
0.85	270.0	-1.0756	0.4972
0.85	282.0	1.4842	0.45
0.95	114.0	0.1402	0.4729
0.95	126.0	-0.7734	0.4632
0.95	138.0	0.6311	0.469
0.95	150.0	0.3188	0.4433
0.95	162.0	-1.0809	0.4714
0.95	174.0	-0.0518	0.4507
0.95	186.0	0.5098	0.4178
0.95	198.0	0.0629	0.5072
0.95	210.0	0.4856	0.4024

CLAS Physics Database