Measurement E151M1335

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:	0.0829
Q²:	0.0291 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.7833

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	0.868	0.6897
0.25	54.0	0.5817	0.8993
0.35	30.0	-0.4106	0.7062
0.35	42.0	-0.1685	0.6521
0.35	54.0	-0.1665	0.7625
0.45	30.0	-1.6226	0.7066
0.45	42.0	-0.1427	0.581
0.45	54.0	0.4101	0.6927
0.45	258.0	0.5561	0.8351
0.55	30.0	-0.4851	0.8039
0.55	42.0	-0.4084	0.5995
0.55	54.0	-0.2118	0.6097
0.55	222.0	-0.8193	0.9011
0.55	234.0	0.2095	0.6328
0.55	246.0	-0.2453	0.6168
0.55	258.0	-0.6305	0.6549
0.55	270.0	-0.4071	0.8111
0.65	138.0	-1.1191	0.7386
0.65	150.0	-1.1188	0.7875
0.65	162.0	-0.8282	0.7809
0.65	174.0	-0.8946	0.9138
0.65	222.0	-0.5519	0.6453
0.65	234.0	-0.1229	0.5865
0.65	246.0	0.43	0.5436
0.65	258.0	0.5828	0.5251
0.65	270.0	0.1283	0.6361
0.75	126.0	1.0031	0.8857
0.75	138.0	-0.425	0.6902
0.75	150.0	-0.414	0.7118
0.75	162.0	-0.1912	0.6079
0.75	174.0	0.6891	0.7727
0.75	222.0	-0.406	0.6595
0.75	234.0	-0.1808	0.5899
0.75	246.0	0.6314	0.5038
0.75	258.0	-0.8082	0.4668
0.75	270.0	-0.0902	0.6868
0.85	150.0	-1.1171	0.7664
0.85	222.0	0.9099	0.5963
0.85	234.0	0.5169	0.4912
0.85	246.0	0.1738	0.549
0.85	258.0	0.3483	0.484
0.85	270.0	0.462	0.4986
0.95	246.0	-0.2735	0.6693

CLAS Physics Database