Measurement E151M1394

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_LL
ε_L:	0.0366
Q²:	0.0245 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.6444

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-2.4	0.608
0.25	54.0	0.8498	0.8331
0.35	42.0	-0.1486	0.6363
0.35	54.0	0.2092	0.6274
0.35	66.0	-1.2182	0.8932
0.45	30.0	0.4842	0.7292
0.45	42.0	-0.1659	0.6027
0.45	54.0	-0.0494	0.5557
0.45	66.0	-0.5832	0.9018
0.45	222.0	0.601	0.8624
0.45	234.0	-0.1003	0.7849
0.45	246.0	-0.3431	0.6838
0.55	30.0	0.9163	0.874
0.55	42.0	-0.256	0.7368
0.55	54.0	-0.5342	0.7751
0.55	150.0	0.7657	0.9269
0.55	162.0	-1.1871	0.8431
0.55	174.0	0.4418	0.8554
0.55	222.0	1.3321	0.608
0.55	234.0	0.1162	0.5571
0.55	246.0	-0.8272	0.5657
0.55	258.0	-0.8088	0.6042
0.65	138.0	-0.6365	0.938
0.65	150.0	-0.961	0.7217
0.65	162.0	-1.0911	0.7094
0.65	222.0	-0.6	0.6732
0.65	234.0	-0.5464	0.6289
0.65	246.0	-0.5968	0.5009
0.65	258.0	1.1275	0.581
0.75	150.0	0.4133	0.7147
0.75	162.0	-0.4244	0.7604
0.75	174.0	-0.4777	0.7735
0.75	186.0	-1.1772	0.8382
0.75	210.0	0.9168	0.8725
0.75	222.0	-0.3471	0.63
0.75	234.0	0.1385	0.5817
0.75	246.0	0.066	0.5052
0.75	258.0	-0.157	0.5695
0.85	222.0	-1.2894	0.5748
0.85	234.0	-0.4839	0.5213
0.85	246.0	-0.3093	0.4847
0.85	258.0	0.3852	0.5317

CLAS Physics Database