Measurement E151M1370

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:	0.0199
Q²:	0.0101 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7165

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	42.0	-0.3687	0.8634
0.35	54.0	-0.1186	0.7368
0.45	30.0	-0.4334	0.9298
0.45	42.0	0.9963	0.6273
0.45	54.0	-0.6969	0.6394
0.45	222.0	-0.8133	0.8533
0.45	234.0	0.6525	0.81
0.45	246.0	0.2227	0.8669
0.55	18.0	-0.1351	0.8215
0.55	30.0	-0.7208	0.7638
0.55	42.0	0.1617	0.552
0.55	54.0	0.4755	0.6285
0.55	138.0	-0.0783	1.0226
0.55	150.0	0.2152	0.8135
0.55	210.0	0.5302	0.805
0.55	222.0	-0.3923	0.763
0.55	234.0	0.067	0.571
0.55	246.0	1.1736	0.5726
0.55	258.0	-1.0321	0.8393
0.65	42.0	0.0454	0.9636
0.65	54.0	0.0042	0.8608
0.65	138.0	-0.0941	0.9628
0.65	150.0	-1.2414	0.8102
0.65	162.0	0.1961	0.7226
0.65	174.0	-0.955	0.8871
0.65	210.0	-0.1679	0.8847
0.65	222.0	0.5836	0.5983
0.65	234.0	-0.476	0.5574
0.65	246.0	0.6362	0.5694
0.65	258.0	0.9551	0.8261
0.75	150.0	1.3091	0.8512
0.75	210.0	2.1154	0.7297
0.75	222.0	-0.8588	0.7154
0.75	234.0	0.3465	0.6297
0.75	246.0	0.2572	0.5817
0.75	258.0	-0.076	0.8116
0.85	210.0	0.1056	0.8242
0.85	222.0	-0.7389	0.6494
0.85	234.0	-0.5529	0.534
0.85	246.0	-1.5685	0.5573

CLAS Physics Database