Measurement E151M1630

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:	0.0261
Q²:	0.0245 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.683

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	30.0	-1.2515	0.7783
0.45	42.0	-1.003	0.828
0.45	210.0	-0.5958	0.8738
0.55	42.0	-0.3841	1.0108
0.55	126.0	-0.4801	0.9451
0.55	138.0	0.2384	0.8948
0.55	150.0	-1.2373	0.8766
0.55	162.0	-1.7568	0.9249
0.55	210.0	-1.073	0.9468
0.55	222.0	0.0311	0.8513
0.55	234.0	-1.0057	0.8128
0.55	246.0	-0.6025	0.8334
0.65	138.0	0.6944	0.7489
0.65	150.0	-0.1736	0.7345
0.65	162.0	1.2082	0.7746
0.65	210.0	0.6549	0.7951
0.65	234.0	-0.6575	0.7403
0.75	138.0	1.9215	0.7517
0.75	222.0	-0.6911	0.8582
0.75	234.0	1.5413	0.7596
0.75	246.0	1.1944	0.8216
0.85	126.0	0.5341	0.9096
0.85	138.0	-0.8028	0.8222
0.85	222.0	0.9521	0.6725
0.85	234.0	-0.6426	0.7765
0.85	246.0	0.1209	0.9127
0.35	42.0	-0.4183	1.1598
0.45	18.0	0.8484	1.4265
0.45	30.0	0.3177	0.9033
0.45	210.0	0.9945	1.0167
0.45	222.0	1.5945	0.9922
0.45	234.0	1.236	0.7077
0.55	42.0	-0.6625	1.0996
0.55	138.0	-0.5008	1.3291
0.55	150.0	-2.3995	0.933
0.55	210.0	1.0167	1.1183
0.55	222.0	-0.2515	0.9372
0.55	234.0	0.5108	1.0507
0.65	138.0	-1.672	1.0032
0.65	150.0	1.1336	1.0958
0.65	210.0	-2.9145	2.9145
0.65	222.0	2.0472	0.6805
0.65	234.0	-0.5839	0.8967
0.65	246.0	1.8648	0.7326
0.75	162.0	0.8751	1.2421
0.75	222.0	-0.458	0.8738
0.75	234.0	-1.0136	0.7545
0.75	246.0	-1.392	0.8052
0.85	138.0	-0.6777	1.0563
0.85	210.0	1.3413	0.8582
0.85	222.0	-0.9542	0.7855
0.85	234.0	0.8158	0.8442
0.85	246.0	0.8869	0.7493

CLAS Physics Database