Measurement E151M509

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:	0.5356
Q²:	0.1435 GeV²
W:	1295.0 GeV
E_beam:	1.9889 GeV
ε:	0.9368

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.15	306.0	-0.1205	0.5827
0.25	66.0	-0.0816	0.521
0.25	78.0	-0.0885	0.5448
0.35	66.0	0.3095	0.5187
0.35	78.0	0.2076	0.5288
0.35	294.0	-0.1373	0.5686
0.45	66.0	-0.2758	0.4528
0.45	78.0	0.9621	0.476
0.45	270.0	0.0258	0.615
0.55	66.0	0.1121	0.6134
0.55	78.0	-0.3359	0.4696
0.55	270.0	0.2896	0.4417
0.55	282.0	-0.78	0.37
0.65	102.0	-0.5802	0.525
0.65	258.0	0.0937	0.4772
0.65	270.0	0.614	0.3973
0.65	282.0	0.8599	0.4566
0.75	78.0	1.3511	0.6579
0.75	90.0	-0.0646	0.5436
0.75	102.0	0.4173	0.4371
0.75	114.0	0.3587	0.4677
0.75	126.0	0.8562	0.6104
0.75	234.0	1.8187	1.8187
0.75	246.0	-0.1606	0.4148
0.75	258.0	-0.5636	0.3368
0.75	270.0	-0.0425	0.3537
0.75	282.0	0.216	0.393
0.75	294.0	-0.6671	0.4705
0.85	78.0	0.1252	0.5131
0.85	90.0	0.1082	0.4002
0.85	102.0	0.0873	0.3816
0.85	114.0	-0.4446	0.3083
0.85	126.0	-0.0111	0.372
0.85	138.0	0.2072	0.4951
0.85	150.0	0.6312	0.5922
0.85	162.0	-0.3046	0.5906
0.85	222.0	-0.0032	0.4769
0.85	234.0	-0.1147	0.4254
0.85	246.0	0.0065	0.3864
0.85	258.0	-0.6147	0.3
0.85	270.0	-0.6154	0.3211
0.85	282.0	0.1634	0.3576
0.85	294.0	-1.0418	0.3686
0.95	90.0	0.7567	0.4315
0.95	102.0	1.5466	0.4494
0.95	114.0	0.7795	0.4313
0.95	126.0	0.5359	0.4421
0.95	138.0	0.482	0.3589
0.95	150.0	0.2702	0.4234
0.95	162.0	-0.2815	0.4884
0.95	174.0	-0.1216	0.5065
0.95	222.0	-0.0673	0.5289
0.95	234.0	-0.1444	0.4932
0.95	246.0	-0.1232	0.4145
0.95	258.0	0.4215	0.3962
0.95	270.0	0.2496	0.4272
0.95	282.0	0.073	0.3458

CLAS Physics Database