Measurement E151M1412

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:	0.0289
Q²:	0.0245 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.5835

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.25	30.0	0.806	0.8357	0.0957
0.25	42.0	0.0077	0.7318	0.03
0.25	54.0	-0.7084	0.8643	0.0853
0.35	42.0	-0.1065	0.675	0.0323
0.35	54.0	0.4327	0.5786	0.0573
0.35	66.0	0.4047	0.8575	0.0546
0.35	246.0	-2.0694	0.8478	0.2353
0.45	30.0	-0.0451	0.8311	0.0304
0.45	42.0	0.9523	0.6465	0.1115
0.45	54.0	-0.5529	0.6992	0.0692
0.45	66.0	0.8184	0.6464	0.0971
0.45	222.0	0.6604	0.8248	0.0803
0.45	234.0	-0.8992	0.6606	0.1058
0.45	246.0	-0.4622	0.7321	0.0601
0.45	258.0	-0.9147	0.7016	0.1074
0.55	30.0	0.0858	0.8637	0.0315
0.55	42.0	0.2545	0.9079	0.0415
0.55	54.0	0.1488	0.7541	0.0344
0.55	150.0	-1.4636	0.748	0.1678
0.55	162.0	-0.9713	0.7886	0.1136
0.55	222.0	-0.1315	0.6722	0.0335
0.55	234.0	0.1974	0.6445	0.0374
0.55	246.0	-0.503	0.6261	0.0642
0.55	258.0	-0.209	0.6477	0.0382
0.65	162.0	0.1849	0.8004	0.0365
0.65	174.0	1.9631	0.6705	0.2234
0.65	186.0	0.2888	0.8446	0.0443
0.65	222.0	-0.8384	0.6356	0.0992
0.65	234.0	-1.1675	0.5142	0.1351
0.65	246.0	-0.9721	0.5566	0.1137
0.65	258.0	0.4126	0.6175	0.0554
0.75	30.0	0.7372	0.826	0.0884
0.75	42.0	0.5163	0.7622	0.0655
0.75	222.0	-0.3931	0.7154	0.0535
0.75	234.0	-1.4708	0.5476	0.1686
0.75	246.0	-0.396	0.4822	0.0538
0.75	258.0	-0.5145	0.6433	0.0653
0.85	222.0	0.0555	0.6963	0.0306
0.85	234.0	0.6995	0.6008	0.0844
0.85	246.0	0.0818	0.5756	0.0314
0.85	258.0	0.9197	0.5507	0.108

CLAS Physics Database