Measurement E151M166

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:	0.0134
Q²:	0.0084 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6652

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	30.0	0.8138	0.8147
0.35	42.0	1.0836	0.7325
0.35	54.0	-0.3361	0.6162
0.45	30.0	-0.7209	0.7292
0.45	42.0	1.1013	0.6809
0.45	54.0	0.2899	0.5609
0.45	66.0	0.2257	0.7338
0.45	222.0	1.2566	0.8344
0.55	30.0	-1.0746	0.5912
0.55	42.0	-0.7508	0.493
0.55	54.0	-0.6237	0.5678
0.55	66.0	-0.2849	0.7825
0.55	162.0	-0.5883	0.7071
0.55	210.0	1.1381	0.7975
0.55	222.0	1.5307	0.6093
0.55	234.0	0.6539	0.5703
0.55	246.0	-1.2498	0.5097
0.55	258.0	0.97	0.7744
0.65	138.0	-1.2378	0.6354
0.65	150.0	-0.731	0.6075
0.65	174.0	-0.5349	0.7545
0.65	210.0	0.0036	0.6705
0.65	222.0	0.6507	0.6545
0.65	234.0	0.4466	0.52
0.65	246.0	0.58	0.614
0.75	210.0	0.3666	0.8319
0.75	222.0	0.8755	0.6758
0.75	234.0	-0.1532	0.557
0.75	246.0	-0.6212	0.4845
0.85	210.0	0.9225	0.6832
0.85	222.0	0.9154	0.6407
0.85	234.0	1.4468	0.55
0.85	246.0	0.8724	0.6431

CLAS Physics Database