Measurement E151M1232

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:	0.3544
Q²:	0.0415 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9107

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	282.0	0.0276	0.5364
0.55	270.0	-0.6129	0.4713
0.55	282.0	0.0747	0.396
0.65	258.0	-0.1071	0.4685
0.65	270.0	-0.8464	0.3615
0.65	282.0	0.3086	0.4958
0.75	258.0	-0.3827	0.3939
0.75	270.0	-0.623	0.3683
0.85	138.0	-0.321	0.527
0.85	150.0	0.1952	0.5117
0.85	162.0	-0.0433	0.4028
0.85	174.0	-0.0705	0.3663
0.85	186.0	0.5626	0.3699
0.85	198.0	-0.0515	0.3508
0.85	210.0	0.3225	0.391
0.85	222.0	-0.0681	0.5435
0.95	186.0	-0.0291	0.4117
0.95	210.0	-0.042	0.4266

CLAS Physics Database