Measurement E151M1732

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:	0.599
Q²:	0.1715 GeV²
W:	1295.0 GeV
E_beam:	1.9889 GeV
ε:	0.9295

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.05	306.0	-0.148	0.7333
0.25	66.0	-0.3259	0.6591
0.25	78.0	-1.086	0.652
0.25	306.0	0.4147	0.6845
0.35	66.0	0.7477	0.5237
0.35	78.0	0.9229	0.6528
0.45	66.0	-1.238	0.6232
0.45	78.0	0.1578	0.5614
0.45	282.0	-0.0031	0.7202
0.55	66.0	1.3344	0.5744
0.55	270.0	0.9206	0.6367
0.55	282.0	-0.3766	0.6337
0.65	90.0	0.8346	0.6824
0.65	102.0	-0.5484	0.6267
0.65	258.0	-0.057	0.5693
0.65	270.0	-1.0725	0.4898
0.65	282.0	1.125	0.4632
0.75	78.0	-0.5102	0.7057
0.75	90.0	0.7193	0.684
0.75	102.0	-0.1912	0.5795
0.75	114.0	-0.3003	0.6572
0.75	126.0	-0.1165	0.6675
0.75	246.0	0.5585	0.5169
0.75	258.0	0.2644	0.4995
0.75	270.0	-0.4417	0.4524
0.75	282.0	-0.4336	0.4048
0.75	294.0	0.4732	0.553
0.85	78.0	0.5475	0.5537
0.85	90.0	0.1589	0.4477
0.85	102.0	-0.2571	0.4684
0.85	114.0	0.1682	0.4592
0.85	126.0	0.5593	0.5187
0.85	138.0	-0.6873	0.6818
0.85	150.0	0.0085	0.6401
0.85	222.0	0.7077	0.6185
0.85	234.0	0.1945	0.537
0.85	246.0	0.4716	0.4474
0.85	258.0	0.3598	0.4664
0.85	270.0	-0.2646	0.3879
0.85	282.0	-0.3606	0.3742
0.85	294.0	-0.9677	0.4801
0.95	90.0	0.5242	0.5024
0.95	102.0	0.7258	0.4066
0.95	114.0	-0.3213	0.5169
0.95	126.0	0.7424	0.4546
0.95	138.0	0.3691	0.5023
0.95	150.0	-0.2404	0.6265
0.95	162.0	-1.1864	0.5997
0.95	222.0	0.5196	0.6443
0.95	246.0	0.3812	0.5267
0.95	258.0	0.682	0.4231
0.95	270.0	0.9164	0.4193
0.95	282.0	-0.1336	0.5479
0.95	294.0	0.7032	0.4993

CLAS Physics Database