Measurement E151M1244

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:	0.0761
Q²:	0.0101 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9182

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	54.0	-0.0708	0.6217	0.031
0.55	246.0	-0.8792	0.451	0.1036
0.55	258.0	-0.137	0.3865	0.0337
0.55	270.0	-0.091	0.3758	0.0317
0.65	162.0	-0.144	0.6465	0.0341
0.65	186.0	-0.4409	0.5883	0.0581
0.65	234.0	-0.2482	0.4999	0.041
0.65	246.0	-0.0769	0.3831	0.0312
0.65	258.0	-0.1889	0.3396	0.0368
0.65	270.0	-0.1027	0.4448	0.0322
0.75	162.0	0.5015	0.5718	0.064
0.75	174.0	-0.2783	0.5113	0.0434
0.75	186.0	-0.0966	0.6195	0.0319
0.75	198.0	-0.3175	0.6485	0.0467
0.75	210.0	-1.0691	0.5245	0.1243
0.75	234.0	-0.0175	0.4504	0.0301
0.75	246.0	0.0316	0.4112	0.0302
0.75	258.0	-0.2794	0.3934	0.0435
0.75	270.0	0.1542	0.513	0.0347
0.85	174.0	0.6251	0.577	0.0766

CLAS Physics Database