Measurement E151M2941

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:	0.8506
Q²:	0.2445 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.9187

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.25	66.0	0.3947	0.2454
0.35	66.0	0.1845	0.266
0.55	270.0	-0.1522	0.2511
0.55	282.0	0.1149	0.266
0.65	270.0	0.1161	0.2653
0.65	282.0	-0.2026	0.2173
0.65	294.0	0.1114	0.2073
0.75	78.0	0.1122	0.257
0.75	90.0	-0.415	0.2057
0.75	102.0	-0.2673	0.2514
0.75	246.0	-0.2853	0.2572
0.75	258.0	-0.3627	0.2222
0.75	270.0	-0.0118	0.1822
0.75	282.0	-0.1291	0.2265
0.75	294.0	-0.1992	0.2547
0.85	78.0	-0.0762	0.2051
0.85	90.0	-0.1287	0.252
0.85	102.0	0.3142	0.1898
0.85	114.0	-0.1491	0.1876
0.85	126.0	-0.195	0.2415
0.85	246.0	-0.0533	0.2382
0.85	258.0	-0.0597	0.2324
0.85	270.0	0.4401	0.2285
0.85	282.0	-0.1637	0.2369
0.85	294.0	0.2901	0.2153
0.95	78.0	0.1611	0.2471
0.95	90.0	-0.3488	0.258
0.95	102.0	0.274	0.2142
0.95	114.0	0.2218	0.2563
0.95	126.0	0.6982	0.1878
0.95	138.0	-0.2366	0.24
0.95	270.0	-0.0718	0.2728
0.95	282.0	-0.0647	0.2366
0.95	294.0	-0.231	0.2096

CLAS Physics Database