CLAS Physics Database

Measurement E151M2826

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: ALU
εL: 0.1803
Q2: 0.1715 GeV2
W: 1475.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6422

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 234.0 0.3623 0.2576
0.65 246.0 -0.0979 0.244
0.75 126.0 0.0312 0.2787
0.75 234.0 -0.0362 0.2548
0.75 246.0 -0.0468 0.2461
0.75 258.0 0.0635 0.242
0.75 270.0 -0.181 0.2495
0.85 126.0 0.3955 0.26
0.85 138.0 -0.1141 0.2581
0.85 246.0 0.176 0.2796
0.85 258.0 -0.11 0.2494
0.85 270.0 -0.2715 0.2425
0.95 246.0 -0.1967 0.2806
0.95 282.0 -0.1957 0.2702
0.55 246.0 -0.2806 0.3903
0.65 234.0 -0.0763 0.4141
0.65 246.0 -0.4225 0.3184
0.65 258.0 -0.4426 0.2794
0.75 246.0 0.3171 0.3377
0.75 258.0 -0.7102 0.236
0.75 270.0 -0.2974 0.3637
0.85 234.0 0.0057 0.3044
0.85 246.0 -0.296 0.2618
0.85 258.0 0.1151 0.3582
0.85 270.0 -0.2235 0.3565
0.85 282.0 0.3661 0.3126
0.95 270.0 -0.5245 0.3153