Measurement E151M1956

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:	0.7003
Q²:	0.1205 GeV²
W:	1235.0 GeV
E_beam:	2.2596 GeV
ε:	0.9666

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	282.0	0.3713	0.4488	0.0385
0.65	258.0	-1.2616	0.4676	0.0874
0.65	270.0	0.4899	0.5281	0.0438
0.65	282.0	-0.6536	0.4622	0.052
0.75	258.0	-0.092	0.46	0.0306
0.75	270.0	0.3447	0.4938	0.0375
0.75	282.0	-0.1727	0.4705	0.032
0.85	90.0	0.5093	0.5397	0.0447
0.85	102.0	0.0416	0.5832	0.0301
0.85	114.0	-0.4647	0.5049	0.0426
0.85	126.0	0.3057	0.4755	0.036
0.85	258.0	0.7828	0.5019	0.0591
0.85	270.0	-0.7091	0.4637	0.055
0.95	114.0	-0.5738	0.8445	0.0479
0.95	126.0	-0.0937	0.9459	0.0306
0.95	138.0	0.1998	0.8428	0.0327
0.95	150.0	2.5377	0.764	0.1678
0.45	66.0	-3.9247	2.4961	0.3619
0.65	270.0	0.1515	2.2134	0.0331
0.65	282.0	-1.2881	2.2167	0.1221
0.75	270.0	-1.2316	1.7626	0.1171
0.75	282.0	-3.4033	2.2259	0.3142
0.85	90.0	-1.7835	3.2915	0.1666
0.85	102.0	-2.4151	3.1825	0.224
0.85	114.0	3.4317	2.9121	0.3168
0.85	126.0	-4.9134	3.0332	0.4525
0.85	258.0	-1.8718	2.7178	0.1746
0.85	270.0	5.7325	2.5215	0.5277
0.95	102.0	21.9198	8.1305	2.0147
0.95	114.0	1.8858	9.6649	0.1759
0.95	126.0	5.1195	8.6161	0.4714
0.95	138.0	7.7192	0.7892	-0.4668
0.95	150.0	3.7592	9.4176	0.3468
0.95	174.0	0.0002	8.9754	0.03

CLAS Physics Database