Measurement E151M1793

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:	0.3203
Q²:	0.1715 GeV²
W:	1415.0 GeV
E_beam:	1.9889 GeV
ε:	0.8872

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	54.0	-2.4872	2.4872
0.35	66.0	0.6834	0.7141
0.35	78.0	-0.5633	0.7074
0.35	282.0	0.5077	0.7005
0.35	294.0	1.1681	0.6343
0.45	78.0	1.6948	0.7291
0.45	282.0	1.1452	0.7708
0.45	294.0	-1.3513	0.7021
0.55	66.0	-0.4504	0.8303
0.55	102.0	1.2263	0.7852
0.55	114.0	0.2127	0.8862
0.55	270.0	-0.917	0.7101
0.55	282.0	1.3403	0.7383
0.65	66.0	-1.3103	0.7948
0.65	102.0	0.2594	0.6318
0.65	114.0	-0.3049	0.6783
0.65	126.0	0.5471	0.8488
0.65	246.0	-0.135	0.5802
0.65	258.0	0.8424	0.6436
0.65	270.0	-1.1668	0.7146
0.75	90.0	-0.2539	0.6599
0.75	102.0	0.571	0.6644
0.75	114.0	1.1596	0.625
0.75	126.0	0.5551	0.6389
0.75	138.0	-1.5895	0.6244
0.75	222.0	0.0244	0.8367
0.75	234.0	1.0123	0.6372
0.75	246.0	0.9794	0.6323
0.75	258.0	0.3084	0.5791
0.75	270.0	-0.3331	0.6379
0.85	78.0	0.0421	0.7627
0.85	90.0	-0.6866	0.7867
0.85	102.0	-0.2303	0.5172
0.85	114.0	-0.6252	0.6584
0.85	126.0	0.2246	0.5947
0.85	138.0	0.5042	0.7452
0.85	150.0	-0.0826	0.7779
0.85	198.0	0.679	0.8384
0.85	210.0	-0.0445	0.6626
0.85	222.0	-0.1499	0.6358
0.85	234.0	0.4943	0.5593
0.85	246.0	0.2843	0.6043
0.85	258.0	-0.0347	0.5315
0.85	270.0	0.2651	0.5717
0.85	282.0	-0.2149	0.546
0.85	294.0	0.1502	0.7411
0.95	78.0	0.8653	0.5063
0.95	114.0	0.809	0.775
0.95	234.0	-0.0452	0.588
0.95	246.0	0.7157	0.5691
0.95	258.0	-0.3977	0.5161
0.95	270.0	0.052	0.5024
0.95	282.0	0.5106	0.476

CLAS Physics Database