Measurement E151M2987

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:	0.5774
Q²:	0.2915 GeV²
W:	1355.0 GeV
E_beam:	1.9889 GeV
ε:	0.8748

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.15	66.0	-0.3655	0.2673
0.35	66.0	-0.1171	0.2863
0.65	90.0	-0.3201	0.2317
0.65	102.0	0.1969	0.2657
0.65	258.0	-0.0924	0.237
0.75	90.0	0.0857	0.2695
0.75	102.0	0.1626	0.2451
0.75	126.0	0.3028	0.2555
0.75	246.0	-0.2074	0.278
0.75	258.0	0.1711	0.2619
0.75	270.0	-0.2114	0.2673
0.75	282.0	0.3575	0.2167
0.85	90.0	-0.1623	0.2292
0.85	102.0	-0.0289	0.2341
0.85	114.0	0.2332	0.2069
0.85	222.0	0.0997	0.2595
0.85	234.0	-0.5909	0.1962
0.85	246.0	0.5164	0.2069
0.85	258.0	-0.5201	0.1839
0.85	270.0	0.0473	0.2284
0.85	282.0	0.3219	0.2276
0.85	294.0	0.0936	0.19
0.95	90.0	-0.1956	0.2495
0.95	102.0	0.179	0.2619
0.95	258.0	0.1705	0.2729
0.95	270.0	-0.5677	0.2339
0.95	282.0	-0.3337	0.2388
0.95	294.0	0.0445	0.251
0.95	306.0	-0.1681	0.2352

CLAS Physics Database