Measurement E151M2119

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:	0.0538
Q²:	0.0593 GeV²
W:	1625.0 GeV
E_beam:	2.2596 GeV
ε:	0.853

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	78.0	0.4896	0.8136
0.45	270.0	0.0883	0.7071
0.45	282.0	-0.5732	0.8195
0.55	126.0	-0.1612	0.7571
0.55	258.0	1.0188	0.7622
0.55	270.0	-0.6103	0.6573
0.65	126.0	-0.416	0.8004
0.65	138.0	-0.6403	0.9433
0.65	210.0	-0.9545	0.952
0.65	258.0	0.2163	0.9426
0.65	294.0	0.081	0.7158
0.75	126.0	-0.6458	0.9344
0.75	138.0	-1.6437	0.9574
0.75	198.0	-0.0557	0.9282
0.75	210.0	-0.9667	1.0466
0.75	222.0	-0.93	0.8491
0.75	234.0	-0.7497	0.919
0.75	270.0	-0.9124	0.745
0.75	282.0	-0.0669	0.6011
0.75	294.0	-0.0328	0.7244
0.85	102.0	1.1254	0.9558
0.85	114.0	0.284	0.8588
0.85	126.0	0.9889	0.9377
0.85	198.0	-1.6592	0.8823
0.85	210.0	0.7517	1.011
0.85	222.0	0.0747	0.8458
0.85	234.0	0.0113	0.9522
0.35	270.0	0.0828	0.7412
0.45	126.0	-0.1572	0.8838
0.45	270.0	0.836	0.6738
0.45	282.0	-1.6038	0.6746
0.55	126.0	0.6646	0.8267
0.55	222.0	-0.8978	0.8012
0.55	270.0	1.4657	0.6807
0.65	126.0	0.2404	0.815
0.65	138.0	-0.5226	0.9592
0.65	198.0	0.347	0.8745
0.65	210.0	-0.6088	0.7906
0.65	234.0	-2.3117	2.3117
0.75	126.0	-0.907	0.8988
0.75	138.0	-0.1362	1.0537
0.75	198.0	-1.4602	0.8734
0.75	210.0	0.4697	0.872
0.75	222.0	-1.6219	0.7734
0.75	270.0	-0.3744	0.6925
0.75	282.0	0.9538	0.6464
0.75	294.0	0.1478	0.8416
0.85	102.0	-0.9197	0.9402
0.85	114.0	-0.5493	1.0306
0.85	126.0	0.1071	1.0057
0.85	198.0	0.0446	1.0001
0.85	222.0	-1.1389	0.8482
0.85	234.0	-1.3831	0.9198
0.85	270.0	0.545	0.9369

CLAS Physics Database