Measurement E151M1967

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:	0.6494
Q²:	0.1435 GeV²
W:	1265.0 GeV
E_beam:	2.2596 GeV
ε:	0.9578

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	66.0	0.9075	1.9461
0.35	78.0	0.7184	1.7821
0.45	66.0	3.0761	1.8607
0.45	78.0	-1.8802	2.1842
0.65	270.0	1.0523	1.6267
0.65	282.0	-0.7675	1.5448
0.75	102.0	-2.9087	2.0745
0.75	114.0	5.9718	2.1892
0.75	258.0	-3.1521	1.7462
0.75	270.0	-0.9739	1.4542
0.75	282.0	0.2236	1.3713
0.85	90.0	-2.0623	2.2729
0.85	102.0	-0.5741	2.1373
0.85	114.0	-3.1813	2.3738
0.85	126.0	5.2672	2.4985
0.85	258.0	-2.4972	1.9667
0.85	270.0	0.0473	1.9627
0.85	282.0	0.2895	1.7617
0.95	90.0	-1.1351	6.6259
0.95	114.0	1.4252	7.006
0.95	126.0	6.5295	0.7703
0.95	138.0	-5.1423	7.3731
0.95	150.0	8.141	6.4395
0.95	162.0	7.3548	6.4861
0.25	66.0	-0.5423	0.4409
0.35	66.0	0.0037	0.4177
0.45	66.0	0.4478	0.4443
0.55	66.0	-0.3231	0.5499
0.55	270.0	0.317	0.608
0.65	270.0	-0.9153	0.3878
0.65	282.0	0.1356	0.4164
0.75	90.0	0.4085	0.5896
0.75	102.0	0.4667	0.5203
0.75	114.0	-0.5336	0.5834
0.75	258.0	-0.1287	0.4411
0.75	270.0	-0.3785	0.4194
0.75	282.0	0.3053	0.4242
0.85	90.0	-1.2397	0.4631
0.85	102.0	0.2889	0.6029
0.85	114.0	-0.0226	0.4987
0.85	126.0	0.3719	0.5948
0.85	246.0	-0.7899	0.6194
0.85	258.0	0.7999	0.4802
0.85	270.0	0.2374	0.4745
0.85	282.0	0.5874	0.4439
0.95	90.0	0.1239	0.9116
0.95	102.0	0.0224	0.7663
0.95	114.0	-0.2005	0.8936
0.95	126.0	0.0137	0.9857
0.95	138.0	0.0839	1.0337
0.95	150.0	0.8298	1.0489
0.95	258.0	-0.326	1.0209

CLAS Physics Database