Measurement E151M2074

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:	0.2198
Q²:	0.1715 GeV²
W:	1505.0 GeV
E_beam:	2.2596 GeV
ε:	0.8813

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	66.0	0.045	1.6798
0.35	294.0	0.8354	1.3549
0.55	102.0	1.4391	1.6907
0.55	114.0	0.812	1.83
0.65	102.0	-0.6758	1.6916
0.65	114.0	1.1541	1.6732
0.65	126.0	-3.8505	1.668
0.65	246.0	2.6229	1.5391
0.65	294.0	-0.8566	1.521
0.75	102.0	-0.537	1.6475
0.75	114.0	-3.4755	1.729
0.75	126.0	-1.528	2.0185
0.75	198.0	0.3977	1.9326
0.75	222.0	2.863	1.7031
0.75	234.0	-0.7699	1.644
0.75	246.0	-2.0859	1.6505
0.75	258.0	0.5555	1.6602
0.75	294.0	1.6666	1.4449
0.85	78.0	-2.647	2.2061
0.85	102.0	-3.8664	1.8618
0.85	126.0	-3.3559	2.026
0.85	138.0	-1.4639	2.0647
0.85	210.0	-0.2343	2.1478
0.85	234.0	-2.5854	1.6866
0.85	246.0	1.2327	1.6639
0.85	258.0	3.1082	1.6449
0.85	270.0	1.745	1.7852
0.95	246.0	-6.8503	5.1396
0.95	258.0	-2.8051	4.6259
0.95	270.0	4.2739	5.0056
0.95	282.0	2.0934	4.9393
0.25	294.0	0.7582	0.6461
0.35	66.0	-0.2407	0.6004
0.35	282.0	0.3036	0.6673
0.45	282.0	-0.3326	0.5799
0.45	294.0	-1.1906	0.5553
0.55	114.0	-1.743	0.5817
0.65	102.0	0.2634	0.6851
0.65	114.0	-0.2376	0.6709
0.65	234.0	-0.8155	0.6874
0.75	102.0	-0.3869	0.6543
0.75	114.0	0.3433	0.6824
0.75	126.0	0.9156	0.7178
0.75	222.0	0.1579	0.7156
0.75	234.0	0.6657	0.8172
0.75	246.0	-0.4767	0.789
0.85	78.0	-0.0783	0.5714
0.85	114.0	-0.7933	0.7796
0.85	126.0	0.2813	0.7011
0.85	222.0	0.4097	0.8066
0.85	234.0	0.8473	0.6575
0.85	246.0	1.0611	0.6863
0.85	258.0	-0.6463	0.7708
0.95	246.0	-0.1221	1.175
0.95	270.0	0.1251	1.0436
0.95	282.0	1.324	1.0754

CLAS Physics Database