Measurement E151M234

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:	0.0879
Q²:	0.0143 GeV²
W:	1265.0 GeV
E_beam:	1.3383 GeV
ε:	0.9379

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.65	234.0	0.1165	0.6468
0.65	246.0	0.1095	0.5251
0.65	258.0	0.0185	0.5627
0.65	270.0	-1.0454	0.3619
0.75	162.0	0.88	0.9203
0.75	234.0	-0.4166	0.6034
0.75	246.0	-0.1201	0.5077
0.75	258.0	0.0141	0.5149
0.75	270.0	0.5597	0.7002
0.85	162.0	0.5207	0.937
0.85	234.0	-0.8482	0.4189
0.85	246.0	-0.3901	0.5202
0.85	258.0	-0.1379	0.6058
0.55	246.0	-0.0476	0.5196
0.55	258.0	-0.1435	0.5174
0.65	234.0	-0.2072	0.4998
0.65	246.0	-0.1126	0.3763
0.65	258.0	-0.3698	0.3492
0.65	270.0	0.0811	0.4339
0.75	150.0	-0.5809	0.4737
0.75	234.0	0.5807	0.503
0.75	246.0	0.0178	0.3906
0.75	258.0	0.3907	0.4118
0.75	270.0	-0.5037	0.3716
0.85	234.0	0.4978	0.4846
0.85	246.0	-0.0661	0.4469
0.85	258.0	0.007	0.3994

CLAS Physics Database