Measurement E151M2325

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:	0.2155
Q²:	0.2915 GeV²
W:	1625.0 GeV
E_beam:	2.999 GeV
ε:	0.8836

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	102.0	-0.4768	0.954
0.55	90.0	2.2714	0.6801
0.55	102.0	-0.0987	0.9145
0.55	114.0	0.8286	0.8579
0.55	270.0	-0.0061	0.9624
0.65	90.0	0.3611	0.8094
0.65	102.0	-0.1672	0.9028
0.65	114.0	0.1004	0.785
0.65	126.0	-0.2651	0.8596
0.65	222.0	-0.5462	1.0008
0.65	234.0	1.7772	0.8223
0.65	294.0	-2.117	0.7704
0.65	306.0	0.5185	0.8803
0.75	66.0	-0.4459	0.8734
0.75	78.0	-0.2077	0.8142
0.75	102.0	-0.3401	0.6774
0.75	114.0	-0.4438	0.8654
0.75	126.0	0.2457	0.9163
0.75	198.0	1.8427	0.9628
0.75	210.0	-1.7703	1.0706
0.75	222.0	0.5226	0.801
0.75	234.0	0.1368	0.7073
0.75	246.0	0.3086	0.698
0.75	258.0	-0.1904	0.9515
0.75	270.0	0.1288	0.964
0.75	306.0	0.4546	0.9519
0.85	66.0	0.6909	0.6531
0.85	78.0	0.1483	0.6825
0.85	90.0	-0.4058	0.8078
0.85	102.0	-0.203	1.0532
0.85	114.0	-0.4281	0.9505
0.85	126.0	-0.3313	0.9582
0.85	186.0	0.7155	0.9203
0.85	198.0	0.3356	0.7498
0.85	210.0	1.8663	0.5746
0.85	222.0	-0.6643	0.7647
0.85	234.0	0.5855	0.6114
0.85	246.0	-0.1839	0.6524
0.85	258.0	0.7797	0.6072
0.85	270.0	1.7021	0.7524
0.85	282.0	0.8342	0.936
0.95	66.0	0.6305	0.8388
0.95	78.0	0.1214	0.7817
0.95	90.0	-0.4714	0.9084
0.95	198.0	0.0919	0.8583
0.95	210.0	-0.6639	0.7951
0.95	222.0	-0.4707	0.7289
0.95	234.0	-0.4671	0.6309
0.95	246.0	0.2662	0.6971
0.95	258.0	-0.5691	0.6012
0.95	270.0	0.2602	0.5432
0.95	282.0	0.88	0.627
0.95	294.0	-1.6775	0.5984
0.95	306.0	0.4533	0.778

CLAS Physics Database