CLAS Physics Database

Measurement E151M784

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: 0.4961
Q2: 0.205 GeV2
W: 1355.0 GeV
Ebeam: 2.2596 GeV
ε: 0.9257

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 90.0 -0.548 0.5462
0.65 102.0 0.2827 0.5389
0.65 114.0 -0.3583 0.6227
0.65 258.0 -0.5552 0.4209
0.65 270.0 0.7613 0.5377
0.75 90.0 0.4083 0.4731
0.75 102.0 1.2649 0.4845
0.75 114.0 -0.1651 0.5724
0.75 126.0 0.5652 1.4686
0.75 246.0 0.1574 0.5103
0.75 258.0 -0.1492 0.5484
0.75 270.0 -0.8508 0.4436
0.75 282.0 -0.1869 0.479
0.85 90.0 -0.3174 0.5426
0.85 102.0 0.4181 0.541
0.85 114.0 -0.4729 0.4778
0.85 126.0 -0.6519 0.589
0.85 222.0 -1.7301 1.1854
0.85 234.0 1.0549 0.6374
0.85 246.0 -0.3753 0.4728
0.85 258.0 0.1108 0.5176
0.85 270.0 -0.6681 0.4042
0.85 282.0 -0.019 0.4401
0.95 114.0 -2.8947 3.8741
0.95 126.0 -2.888 3.8214
0.95 270.0 -1.2054 3.0432
0.95 282.0 3.7819 3.5768
0.95 294.0 -3.1019 2.4708
0.95 306.0 -1.8336 3.2072
0.85 294.0 0.2185 0.544
0.95 102.0 0.5663 0.9996
0.95 138.0 -0.3401 1.0419
0.95 234.0 -0.1213 1.0987
0.95 258.0 1.4283 0.8646
0.95 270.0 -0.0581 0.8771
0.95 282.0 -0.3996 0.8629
0.95 294.0 0.8244 0.8041
0.95 306.0 -0.3302 0.9253