Measurement E151M1994

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:	0.5774
Q²:	0.205 GeV²
W:	1325.0 GeV
E_beam:	2.2596 GeV
ε:	0.9333

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	90.0	1.685	1.5459
0.75	90.0	0.1781	1.6015
0.75	102.0	1.4095	1.7776
0.75	114.0	-1.7422	1.7518
0.75	258.0	1.3075	1.4477
0.75	270.0	-0.7358	1.4485
0.75	294.0	1.6249	1.2597
0.85	78.0	2.7834	1.8746
0.85	90.0	0.1968	1.7081
0.85	102.0	-0.8691	1.5059
0.85	114.0	1.088	1.9146
0.85	126.0	4.2194	1.58
0.85	234.0	3.3298	1.5536
0.85	246.0	2.8915	1.522
0.85	258.0	-1.9194	1.3689
0.85	270.0	3.2553	1.3305
0.85	282.0	0.073	1.4273
0.85	294.0	1.4881	1.4548
0.95	102.0	1.1942	5.4402
0.95	114.0	-2.5489	4.7142
0.95	126.0	9.6144	5.1407
0.95	270.0	-2.8295	4.4358
0.95	294.0	-0.5709	4.1515
0.25	66.0	-1.0318	0.5824
0.65	102.0	0.3046	0.6236
0.65	258.0	0.801	0.611
0.65	270.0	0.4033	0.5794
0.65	282.0	0.1407	0.576
0.75	78.0	-0.2014	0.5946
0.75	90.0	1.6746	0.5745
0.75	102.0	-0.1696	0.6163
0.75	246.0	0.2346	0.6306
0.75	258.0	0.5545	0.5128
0.75	282.0	0.1962	0.6029
0.75	294.0	-0.5215	0.557
0.85	78.0	-0.2772	0.7192
0.85	90.0	0.5692	0.5836
0.85	102.0	-0.1075	0.5137
0.85	114.0	1.3462	0.5648
0.85	126.0	0.4817	0.751
0.85	234.0	-0.1291	0.824
0.85	246.0	0.4861	0.6694
0.85	258.0	0.869	0.6179
0.85	282.0	0.2129	0.6149
0.85	294.0	0.8174	0.5588
0.95	90.0	-0.4468	1.0663
0.95	102.0	1.0213	1.1341
0.95	114.0	-1.5486	0.9589
0.95	126.0	0.0284	1.2049
0.95	258.0	-0.7675	1.0047
0.95	270.0	-0.0601	1.1349
0.95	282.0	0.565	1.0747
0.95	294.0	1.8949	0.9091

CLAS Physics Database