Measurement E151M107

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:	0.0307
Q²:	0.0101 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.8045

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	42.0	0.703	0.7754
0.35	54.0	0.3736	0.618
0.45	42.0	0.082	0.6042
0.45	54.0	-0.5866	0.6032
0.55	18.0	-0.1925	0.7255
0.55	30.0	-0.8253	0.5883
0.55	42.0	0.0006	0.5798
0.55	54.0	0.2935	0.5863
0.55	150.0	-0.4053	0.8064
0.55	222.0	0.1301	0.7002
0.55	234.0	0.019	0.5788
0.55	246.0	0.526	0.6357
0.55	258.0	0.2527	0.6832
0.65	30.0	1.328	0.9
0.65	42.0	0.2285	0.6618
0.65	54.0	-0.0485	0.6741
0.65	138.0	-0.3376	0.7507
0.65	150.0	-0.4933	0.7132
0.65	162.0	1.0544	0.8046
0.65	174.0	-0.3749	0.7467
0.65	210.0	-0.3765	0.7304
0.65	222.0	-0.2147	0.5898
0.65	234.0	-0.4505	0.4483
0.65	246.0	0.2441	0.478
0.65	258.0	2.3801	2.3801
0.75	138.0	-0.022	0.8322
0.75	150.0	-1.2366	0.6471
0.75	162.0	0.4287	0.7603
0.75	174.0	-0.4321	0.7837
0.75	222.0	-0.2258	0.5185
0.75	234.0	1.739	0.5682
0.75	246.0	0.8829	0.5375
0.75	258.0	0.5854	0.7172
0.85	210.0	0.8472	0.6874
0.85	222.0	0.3692	0.5111
0.85	234.0	-0.1229	0.4527
0.85	246.0	0.298	0.5084
0.85	258.0	-0.1878	0.5582

CLAS Physics Database