Measurement E151M1632

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:	0.0362
Q²:	0.0348 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6738

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	18.0	-0.1027	0.8982
0.45	30.0	1.827	0.8653
0.45	42.0	0.2129	0.8736
0.55	138.0	-0.9022	0.8206
0.55	150.0	-1.2591	0.8446
0.55	222.0	1.1917	0.8704
0.55	234.0	-1.2532	0.7947
0.55	246.0	-0.651	1.01
0.65	138.0	0.5619	0.7457
0.65	150.0	-0.5522	0.8398
0.65	210.0	-0.4414	0.7627
0.65	222.0	-1.1095	0.7851
0.65	234.0	-0.7667	0.7196
0.75	150.0	0.9612	0.8041
0.75	162.0	0.4338	0.933
0.75	222.0	0.2385	0.7726
0.75	234.0	-0.2909	0.6955
0.75	246.0	-0.6634	0.6669
0.85	222.0	0.0097	0.7159
0.85	234.0	0.7655	0.7274
0.85	246.0	0.181	0.6823
0.35	42.0	-0.1252	1.0366
0.55	210.0	0.7146	1.1494
0.55	222.0	0.8122	1.1972
0.55	246.0	-2.5467	2.5467
0.65	126.0	-0.3658	1.1846
0.65	138.0	-1.7776	0.9126
0.65	162.0	0.2838	1.303
0.65	222.0	-0.8941	0.8125
0.65	234.0	-1.36	0.8158
0.65	246.0	-0.3674	0.881
0.75	162.0	2.5175	2.5175
0.75	210.0	-2.6254	2.6254
0.75	222.0	0.8572	0.8791
0.75	234.0	0.1391	0.9028
0.75	246.0	0.7474	0.8467
0.85	210.0	-0.4267	1.1065
0.85	222.0	-0.149	0.8426
0.85	234.0	-0.6794	0.9805
0.85	246.0	1.0187	0.7362
0.85	258.0	0.3817	1.0539

CLAS Physics Database