CLAS Physics Database

Measurement E151M899

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: AUL
εL: 0.0738
Q2: 0.0844 GeV2
W: 1625.0 GeV
Ebeam: 2.2596 GeV
ε: 0.845

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 126.0 -1.2156 0.6235
0.65 282.0 1.3749 0.7197
0.65 294.0 -0.7016 0.538
0.75 282.0 -0.1806 0.5213
0.75 294.0 1.5714 0.7108
0.85 102.0 -2.2861 0.5941
0.85 114.0 -0.4997 0.9312
0.85 246.0 0.3732 0.8599
0.55 282.0 -0.155 0.6482
0.65 114.0 1.3561 0.7513
0.65 210.0 -0.0296 0.8203
0.65 222.0 1.4198 0.8598
0.65 294.0 -0.9039 0.5248
0.75 126.0 -0.931 0.7062
0.75 222.0 -0.3728 0.6942
0.75 234.0 -0.2056 0.7724
0.75 282.0 -0.2923 0.6141
0.85 102.0 0.648 0.8253
0.85 114.0 0.6731 0.7838
0.85 222.0 1.1642 0.9069
0.85 234.0 1.3064 0.8475
0.95 246.0 -0.2023 1.2638