Measurement E151M1397

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:	0.0583
Q²:	0.0415 GeV²
W:	1445.0 GeV
E_beam:	1.0539 GeV
ε:	0.622

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	42.0	-0.5761	0.7645	0.0716
0.25	54.0	1.7177	0.8999	0.196
0.35	42.0	0.0261	0.7647	0.0301
0.35	54.0	1.1976	0.607	0.1384
0.45	30.0	0.284	0.9567	0.0439
0.45	42.0	0.1601	0.8154	0.035
0.45	54.0	-0.452	0.6538	0.0591
0.45	66.0	-1.0346	0.9841	0.1205
0.45	234.0	-0.5034	0.8111	0.0642
0.45	246.0	0.3771	0.6659	0.052
0.45	258.0	0.6487	0.7195	0.0791
0.55	42.0	0.4163	0.761	0.0557
0.55	54.0	0.5195	0.8044	0.0658
0.55	150.0	-0.7456	0.9228	0.0893
0.55	162.0	-0.3701	0.8212	0.0514
0.55	234.0	0.1051	0.6409	0.0323
0.55	246.0	-0.8397	0.5375	0.0993
0.55	258.0	-0.1016	0.6173	0.0321
0.65	150.0	-0.7459	0.8051	0.0893
0.65	162.0	0.5695	0.7303	0.0709
0.65	174.0	-1.3026	0.7226	0.1499
0.65	186.0	0.2011	0.8585	0.0376
0.65	210.0	-1.9619	0.757	0.2233
0.65	222.0	-0.2248	0.6226	0.0393
0.65	234.0	0.163	0.5981	0.0352
0.65	246.0	-0.9682	0.5472	0.1132
0.65	258.0	-0.0614	0.5459	0.0308
0.75	138.0	0.2774	0.7982	0.0433
0.75	150.0	0.9499	0.7853	0.1113
0.75	162.0	-0.6747	0.7663	0.0818
0.75	174.0	-0.595	0.8558	0.0735
0.75	198.0	-0.8349	0.8638	0.0988
0.75	222.0	-1.0247	0.6009	0.1194
0.75	234.0	-0.3496	0.5877	0.0495
0.75	246.0	0.0162	0.498	0.0301
0.75	258.0	0.4222	0.5032	0.0563
0.75	270.0	0.7866	0.7348	0.0937
0.85	162.0	-0.1219	0.8466	0.033
0.85	222.0	-0.8127	0.607	0.0964
0.85	234.0	0.7454	0.6877	0.0893
0.85	246.0	0.3504	0.563	0.0496
0.85	258.0	0.7696	0.4959	0.0918
0.85	270.0	-0.3586	0.6181	0.0504
0.95	246.0	-0.1183	0.663	0.0328

CLAS Physics Database