Measurement E151M2019

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:	0.4286
Q²:	0.205 GeV²
W:	1385.0 GeV
E_beam:	2.2596 GeV
ε:	0.9171

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.65	102.0	0.121	0.7887
0.65	246.0	1.311	0.7251
0.65	258.0	-0.3742	0.6495
0.75	90.0	0.6636	0.6445
0.75	102.0	0.7295	0.5577
0.75	114.0	0.5253	0.7054
0.75	246.0	0.6434	0.6932
0.75	258.0	-0.7708	0.6645
0.75	270.0	-1.4514	0.6721
0.85	90.0	0.8751	0.8
0.85	102.0	-1.4793	0.6398
0.85	114.0	-0.2376	0.702
0.85	126.0	-1.0673	0.7331
0.85	222.0	2.0684	0.7276
0.85	234.0	-0.1118	0.915
0.85	246.0	0.1615	0.8533
0.85	258.0	0.405	0.6937
0.85	270.0	0.822	0.7084
0.85	282.0	-0.5379	0.6608
0.85	294.0	-0.2905	0.7042
0.95	114.0	-1.3911	1.2833
0.95	234.0	1.9149	1.1391
0.95	246.0	-1.0381	1.3345
0.95	258.0	-3.4865	0.9803
0.95	270.0	-0.8789	1.0821
0.95	282.0	-0.0521	1.165
0.95	294.0	0.7097	0.9445
0.25	66.0	0.3314	1.1925
0.75	90.0	0.3805	1.2284
0.75	102.0	-1.4268	1.2104
0.75	114.0	1.1889	1.1617
0.75	234.0	-0.3067	1.2947
0.75	246.0	1.8376	1.2377
0.75	258.0	0.3125	1.1252
0.75	270.0	-0.1021	1.149
0.85	90.0	0.7108	1.448
0.85	102.0	0.2279	1.3772
0.85	114.0	2.6717	1.2728
0.85	126.0	1.8067	1.5941
0.85	234.0	1.3184	1.2112
0.85	258.0	-0.2528	1.1882
0.85	270.0	-1.7539	1.0641
0.85	282.0	0.1051	1.2244
0.95	114.0	-0.1097	4.255
0.95	234.0	-0.6995	3.7405
0.95	246.0	-1.071	3.6902
0.95	270.0	0.3725	3.8915
0.95	282.0	1.987	3.0143
0.95	294.0	0.4199	3.5074

CLAS Physics Database