Measurement E151M607

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:	0.0458
Q²:	0.0291 GeV²
W:	1505.0 GeV
E_beam:	1.9889 GeV
ε:	0.8914

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	78.0	0.2521	0.6677	0.0337
0.35	90.0	0.5085	0.7008	0.0432
0.35	270.0	-0.2551	0.6286	0.0338
0.35	282.0	0.3078	0.6298	0.0354
0.35	294.0	-0.7541	0.4884	0.055
0.45	66.0	0.2553	0.7203	0.0338
0.45	78.0	-0.4714	0.4518	0.0416
0.45	90.0	0.2141	0.5231	0.0327
0.45	270.0	0.4614	0.6659	0.0412
0.45	282.0	-1.1805	0.4519	0.0782
0.45	294.0	0.3905	0.7183	0.0383
0.55	78.0	-0.4329	0.5241	0.04
0.55	90.0	-0.2278	0.5777	0.0331
0.55	138.0	-0.6495	0.5852	0.0498
0.55	222.0	0.5425	0.6711	0.0447
0.55	234.0	0.726	0.6914	0.0536
0.55	270.0	0.0569	0.5707	0.0302
0.55	282.0	0.9288	0.5058	0.0642
0.55	294.0	-0.8123	0.5034	0.058
0.65	78.0	0.6645	0.6668	0.0505
0.65	114.0	-0.6692	0.5317	0.0507
0.65	126.0	-0.5064	0.5104	0.0431
0.65	138.0	0.5333	0.6047	0.0443
0.65	150.0	-0.1082	0.6446	0.0307
0.65	198.0	0.3542	0.6956	0.037
0.65	222.0	1.0631	0.4368	0.0716
0.65	234.0	0.9701	0.5839	0.0665
0.65	270.0	0.3158	0.6705	0.0357
0.75	78.0	0.7014	0.7226	0.0524
0.75	126.0	-1.3418	0.3783	0.0874
0.75	138.0	-1.3594	0.3965	0.0884
0.75	210.0	0.7133	0.6419	0.0529
0.75	222.0	1.869	0.4621	0.1182
0.75	234.0	1.1807	0.5928	0.0782
0.75	246.0	0.2755	0.6032	0.0344
0.75	282.0	-1.1107	0.4146	0.0743
0.85	114.0	-0.6322	0.6212	0.0489
0.85	210.0	0.9726	0.6366	0.0666
0.85	222.0	0.1373	0.5832	0.0312
0.85	234.0	0.6012	0.5414	0.0475

CLAS Physics Database