Measurement E151M2918

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:	0.352
Q²:	0.0496 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9717

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.45	78.0	0.2484	0.2045
0.55	78.0	-0.2454	0.2076
0.55	90.0	0.1549	0.2
0.55	270.0	0.2924	0.2439
0.65	90.0	0.1865	0.2524
0.65	246.0	0.2406	0.2535
0.65	258.0	-0.0157	0.1897
0.65	270.0	-0.1978	0.2136
0.75	114.0	0.2118	0.2507
0.75	126.0	-0.0492	0.2317
0.75	138.0	0.1041	0.2127
0.75	234.0	0.2413	0.2695
0.75	246.0	-0.0425	0.1899
0.75	258.0	0.3476	0.1802
0.75	270.0	-0.0218	0.1821
0.85	114.0	-0.0364	0.2236
0.85	126.0	0.2349	0.1769
0.85	138.0	-0.2084	0.176
0.85	150.0	-0.2368	0.1744
0.85	162.0	-0.4737	0.1717
0.85	174.0	-0.0935	0.1977
0.85	186.0	-0.2256	0.2432
0.85	234.0	0.171	0.229
0.85	246.0	0.0725	0.2108
0.85	258.0	-0.1207	0.2519
0.95	126.0	0.258	0.246
0.95	150.0	0.1109	0.2273
0.95	162.0	-0.1629	0.2334
0.95	174.0	-0.2666	0.2594
0.95	186.0	0.111	0.2341

CLAS Physics Database