Measurement E151M137

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:	0.1059
Q²:	0.0496 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7168

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	42.0	0.1261	0.8189
0.25	54.0	-0.1051	0.9059
0.35	30.0	1.1257	0.9245
0.35	42.0	-0.5913	0.5436
0.35	54.0	0.4356	0.7651
0.45	30.0	-1.2517	0.6216
0.45	42.0	-0.6027	0.6443
0.45	54.0	-1.3106	0.745
0.45	246.0	0.4976	0.8809
0.55	42.0	1.8888	0.8614
0.55	234.0	-0.1721	0.5598
0.55	246.0	0.83	0.5893
0.55	258.0	0.7224	0.5496
0.65	138.0	-0.7783	0.6661
0.65	150.0	1.2122	0.7826
0.65	162.0	0.9675	0.8124
0.65	174.0	-0.2836	0.808
0.65	222.0	0.6587	0.637
0.65	234.0	0.0439	0.5644
0.65	246.0	-0.4278	0.4826
0.65	258.0	-1.2646	0.3964
0.65	270.0	-0.5368	0.5639
0.75	126.0	0.4158	0.9325
0.75	138.0	-0.2086	0.6486
0.75	150.0	0.3296	0.633
0.75	162.0	2.0046	0.715
0.75	210.0	-0.4828	0.7989
0.75	222.0	0.5356	0.6316
0.75	234.0	0.8832	0.6096
0.75	246.0	0.7727	0.4784
0.75	258.0	0.2456	0.4559
0.75	270.0	-0.1483	0.5711
0.85	138.0	-0.3278	0.7049
0.85	150.0	-0.1243	0.7684
0.85	162.0	0.197	0.7434
0.85	174.0	0.3458	0.7779
0.85	234.0	0.398	0.528
0.85	246.0	1.0633	0.4686
0.85	258.0	-0.2627	0.4503
0.85	270.0	0.2471	0.4159
0.95	126.0	0.6535	0.7523
0.95	234.0	1.7308	0.5745
0.95	246.0	-0.1095	0.5578
0.95	258.0	-0.4664	0.4349
0.95	270.0	-0.5156	0.5847

CLAS Physics Database