Measurement E151M1251

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:	0.2379
Q²:	0.0348 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.8967

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.15	42.0	-0.3038	0.5809
0.15	54.0	0.5041	0.6443
0.25	42.0	-0.265	0.5097
0.25	54.0	0.0164	0.4779
0.35	42.0	-0.3532	0.513
0.35	54.0	0.9962	0.4427
0.35	66.0	-0.8648	0.7557
0.45	42.0	-1.247	0.5846
0.45	54.0	0.1618	0.6382
0.45	270.0	0.2968	0.4853
0.45	282.0	0.4313	0.4326
0.55	246.0	0.5393	0.5501
0.55	258.0	-0.1316	0.4031
0.55	270.0	-0.1688	0.3564
0.55	282.0	-0.0748	0.36
0.65	234.0	-0.4182	0.5133
0.65	246.0	-0.0081	0.3859
0.65	258.0	0.2386	0.3036
0.65	270.0	0.2973	0.3175
0.65	282.0	-0.1972	0.3856
0.75	138.0	0.6018	0.6607
0.75	150.0	0.5311	0.5448
0.75	162.0	-0.0918	0.4598
0.75	174.0	0.6447	0.4941
0.75	186.0	-0.56	0.5337
0.75	198.0	1.3231	0.4401
0.75	210.0	-0.2312	0.5339
0.75	234.0	-0.731	0.4954
0.75	246.0	0.4122	0.4211
0.75	258.0	-0.1097	0.2788
0.75	270.0	-0.969	0.2982
0.75	282.0	0.7118	0.3875
0.85	138.0	0.3848	0.4428
0.85	150.0	-0.5173	0.4174
0.85	162.0	0.0556	0.3731
0.85	174.0	-0.2055	0.3769
0.85	186.0	0.1046	0.4076
0.85	198.0	-0.3367	0.4692
0.85	210.0	-0.3467	0.4611
0.85	222.0	-0.4193	0.5292
0.85	234.0	-0.1729	0.4539
0.85	246.0	-0.0672	0.4088
0.85	258.0	-0.0526	0.3706
0.85	270.0	0.4696	0.3916
0.95	150.0	0.686	0.4242
0.95	162.0	-0.1024	0.5407
0.95	186.0	0.329	0.4557
0.95	198.0	0.757	0.4664

CLAS Physics Database