Measurement E151M1359

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:	0.1059
Q²:	0.0496 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7168

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	1.2314	0.8641
0.25	54.0	-0.3354	1.0388
0.35	30.0	0.1927	1.0098
0.35	42.0	0.7781	0.6366
0.35	54.0	2.2896	0.6939
0.45	30.0	0.5477	0.8151
0.45	42.0	0.3079	0.7818
0.45	54.0	-1.6621	0.9119
0.45	246.0	1.7621	0.9086
0.55	42.0	-1.3069	0.9399
0.55	234.0	-0.2773	0.6466
0.55	246.0	0.1521	0.6447
0.55	258.0	-0.2017	0.5983
0.65	138.0	0.2111	0.8178
0.65	150.0	0.4016	0.8432
0.65	162.0	1.1616	0.8523
0.65	174.0	-1.8645	0.8605
0.65	222.0	-0.1807	0.7021
0.65	234.0	0.566	0.6419
0.65	246.0	0.1375	0.5733
0.65	258.0	-0.2588	0.5369
0.65	270.0	-0.5823	0.6745
0.75	126.0	-0.2824	1.0306
0.75	138.0	1.7717	0.6854
0.75	150.0	-0.2472	0.7028
0.75	162.0	0.6981	0.7861
0.75	210.0	0.1517	0.9597
0.75	222.0	-0.1129	0.6977
0.75	234.0	0.6006	0.6507
0.75	246.0	0.275	0.523
0.75	258.0	-0.2746	0.5079
0.75	270.0	1.0265	0.6338
0.85	138.0	1.3596	0.7894
0.85	150.0	0.441	0.8837
0.85	162.0	1.2292	0.8223
0.85	174.0	-0.2662	0.8651
0.85	234.0	0.5689	0.5825
0.85	246.0	-0.0871	0.5116
0.85	258.0	-0.084	0.526
0.85	270.0	-0.2028	0.4653
0.95	126.0	-0.2799	0.8159
0.95	234.0	0.8365	0.6623
0.95	246.0	0.2213	0.6443
0.95	258.0	0.412	0.5252
0.95	270.0	-0.6807	0.6707

CLAS Physics Database