Measurement E151M3175

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_LU
ε_L:	0.4745
Q²:	0.0707 GeV²
W:	1235.0 GeV
E_beam:	2.2596 GeV
ε:	0.9751

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.45	78.0	0.2104	0.1569	0.0303
0.55	78.0	-0.0496	0.1584	0.0301
0.65	270.0	-0.1245	0.2124	0.0301
0.75	258.0	0.2334	0.2215	0.0304
0.75	270.0	0.0585	0.2329	0.03
0.85	114.0	-0.4951	0.2272	0.0316
0.85	126.0	-0.0143	0.1992	0.03
0.85	138.0	-0.4587	0.2304	0.0314
0.85	150.0	-0.4818	0.2332	0.0315
0.95	126.0	-0.1257	0.2439	0.0301
0.95	138.0	-0.1552	0.2454	0.0302
0.95	150.0	0.2559	0.0302	None
0.95	162.0	0.3107	0.2127	0.0306
0.55	270.0	-0.2355	0.2388	0.0304
0.65	90.0	-0.2776	0.2343	0.0305
0.65	270.0	0.0151	0.2323	0.03
0.75	246.0	-0.0849	0.2273	0.03
0.75	258.0	-0.1237	0.199	0.0301
0.75	270.0	-0.2503	0.195	0.0304
0.85	126.0	-0.1154	0.1993	0.0301
0.85	138.0	0.0648	0.1927	0.03
0.85	150.0	0.0928	0.2492	0.0301
0.85	246.0	0.0177	0.2073	0.03
0.85	258.0	-0.1155	0.2062	0.0301
0.95	114.0	0.2609	0.2322	0.0305
0.95	126.0	-0.2788	0.2311	0.0305
0.95	150.0	-0.1288	0.1957	0.0301
0.95	162.0	-0.5972	0.1826	0.0323
0.95	174.0	0.2569	0.2455	0.0304
0.95	186.0	-0.0274	0.2475	0.03

CLAS Physics Database