Measurement E151M2925

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:	0.8557
Q²:	0.1715 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9441

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.35	66.0	0.2025	0.2788
0.35	78.0	-0.0136	0.2772
0.45	66.0	0.0895	0.2629
0.45	78.0	-0.5639	0.1994
0.45	282.0	-0.3988	0.2438
0.55	78.0	-0.2746	0.2572
0.55	270.0	-0.0328	0.2473
0.55	282.0	-0.1216	0.2212
0.55	294.0	0.0677	0.2789
0.65	270.0	-0.233	0.194
0.65	282.0	0.2037	0.1931
0.75	90.0	0.0435	0.2503
0.75	102.0	-0.0809	0.2445
0.75	246.0	-0.4252	0.2539
0.75	258.0	0.1766	0.2163
0.75	270.0	0.1349	0.2026
0.75	282.0	-0.2525	0.2042
0.75	294.0	0.2725	0.2635
0.85	78.0	-0.0494	0.2214
0.85	90.0	0.048	0.2102
0.85	102.0	0.1726	0.1829
0.85	114.0	0.0677	0.2147
0.85	126.0	0.5228	0.2134
0.85	258.0	0.247	0.2515
0.85	270.0	0.2309	0.2139
0.85	282.0	-0.3298	0.2316
0.95	78.0	0.2708	0.2212
0.95	90.0	-0.4008	0.1883
0.95	102.0	0.0494	0.2235
0.95	126.0	-0.1935	0.2233
0.95	150.0	-0.012	0.2383
0.95	162.0	-0.4466	0.1791
0.95	174.0	-0.2062	0.274
0.95	186.0	-0.1094	0.2497
0.95	270.0	0.1656	0.2763

CLAS Physics Database