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	syst. uncert.
0.25	42.0	-2.4	0.608	0.2723
0.25	54.0	0.8498	0.8331	0.1004
0.35	42.0	-0.1486	0.6363	0.0344
0.35	54.0	0.2092	0.6274	0.0382
0.35	66.0	-1.2182	0.8932	0.1406
0.45	30.0	0.4842	0.7292	0.0623
0.45	42.0	-0.1659	0.6027	0.0354
0.45	54.0	-0.0494	0.5557	0.0305
0.45	66.0	-0.5832	0.9018	0.0723
0.45	222.0	0.601	0.8624	0.0741
0.45	234.0	-0.1003	0.7849	0.0321
0.45	246.0	-0.3431	0.6838	0.049
0.55	30.0	0.9163	0.874	0.1076
0.55	42.0	-0.256	0.7368	0.0416
0.55	54.0	-0.5342	0.7751	0.0673
0.55	150.0	0.7657	0.9269	0.0914
0.55	162.0	-1.1871	0.8431	0.1372
0.55	174.0	0.4418	0.8554	0.0582
0.55	222.0	1.3321	0.608	0.1532
0.55	234.0	0.1162	0.5571	0.0327
0.55	246.0	-0.8272	0.5657	0.098
0.55	258.0	-0.8088	0.6042	0.096
0.65	138.0	-0.6365	0.938	0.0778
0.65	150.0	-0.961	0.7217	0.1125
0.65	162.0	-1.0911	0.7094	0.1267
0.65	222.0	-0.6	0.6732	0.074
0.65	234.0	-0.5464	0.6289	0.0685
0.65	246.0	-0.5968	0.5009	0.0737
0.65	258.0	1.1275	0.581	0.1307
0.75	150.0	0.4133	0.7147	0.0554
0.75	162.0	-0.4244	0.7604	0.0565
0.75	174.0	-0.4777	0.7735	0.0617
0.75	186.0	-1.1772	0.8382	0.1361
0.75	210.0	0.9168	0.8725	0.1077
0.75	222.0	-0.3471	0.63	0.0493
0.75	234.0	0.1385	0.5817	0.0338
0.75	246.0	0.066	0.5052	0.0309
0.75	258.0	-0.157	0.5695	0.0348
0.85	222.0	-1.2894	0.5748	0.1485
0.85	234.0	-0.4839	0.5213	0.0623
0.85	246.0	-0.3093	0.4847	0.046
0.85	258.0	0.3852	0.5317	0.0528

CLAS Physics Database