Measurement E151M2034

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_LL
ε_L:	0.4141
Q²:	0.2445 GeV²
W:	1415.0 GeV
E_beam:	2.2596 GeV
ε:	0.8977

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	90.0	1.4749	1.1704
0.75	102.0	0.6776	1.3827
0.75	126.0	0.3594	1.4331
0.75	234.0	0.0108	1.1634
0.75	258.0	1.3536	0.9193
0.75	270.0	-2.0061	0.9797
0.85	138.0	-0.6221	1.5076
0.85	234.0	3.5599	3.5599
0.85	246.0	0.9338	1.255
0.85	270.0	-1.9526	1.209
0.85	282.0	1.2615	1.1416
0.85	294.0	-0.7346	1.1228
0.95	66.0	1.9209	3.8121
0.95	294.0	-0.167	3.4566
0.65	90.0	-0.6551	0.7973
0.65	102.0	-0.7788	0.7912
0.65	246.0	-0.1187	0.8267
0.75	114.0	0.3835	0.7376
0.75	126.0	-0.2057	0.8479
0.75	246.0	0.3311	0.7897
0.75	258.0	-0.6729	0.8059
0.85	66.0	0.2833	0.8095
0.85	90.0	1.9686	0.7405
0.85	102.0	-0.5576	0.6626
0.85	114.0	0.5649	0.733
0.85	246.0	-0.1864	0.8946
0.85	258.0	0.8906	0.7159
0.85	270.0	0.2627	0.8164
0.85	282.0	0.1583	0.854
0.95	258.0	-1.0298	1.3764
0.95	270.0	1.6365	1.312
0.95	282.0	-0.073	1.1286
0.95	294.0	1.1684	1.1533

CLAS Physics Database