CLAS Physics Database

Measurement E151M34

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: 0.4767
Q2: 0.0844 GeV2
W: 1235.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8524

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.05 42.0 -0.016 0.5124
0.15 30.0 0.0446 0.6102
0.15 42.0 0.1544 0.484
0.15 54.0 1.4137 0.6327
0.25 42.0 -0.0179 0.5584
0.35 282.0 -0.4641 0.474
0.35 294.0 -0.8522 0.4337
0.45 270.0 -0.8388 0.3373
0.45 282.0 -0.1588 0.394
0.45 294.0 0.218 0.4563
0.55 258.0 0.3635 0.4913
0.55 270.0 -0.2531 0.2989
0.55 282.0 0.2726 0.2938
0.55 294.0 -0.3593 0.4212
0.65 246.0 -0.9259 0.4541
0.65 258.0 -0.3407 0.3126
0.65 270.0 -0.3984 0.2643
0.65 282.0 -0.0877 0.3104
0.65 294.0 -0.4934 0.3402
0.75 246.0 0.8201 0.4187
0.75 258.0 0.0047 0.3462
0.75 270.0 -0.1755 0.2824
0.75 282.0 -0.693 0.2953
0.75 294.0 -0.6573 0.4126
0.85 114.0 0.5013 0.4918
0.85 126.0 0.6934 0.4914
0.85 138.0 -0.4199 0.3393
0.85 150.0 0.6399 0.4875
0.85 162.0 0.8276 0.3814
0.85 174.0 0.9172 0.3967
0.85 186.0 0.2677 0.4733
0.85 198.0 -0.1819 0.3799
0.85 210.0 -0.4372 0.3935
0.85 222.0 -0.4268 0.4858
0.85 246.0 -0.7204 0.3791
0.85 258.0 -0.3292 0.4669
0.85 270.0 0.3118 0.3861
0.85 282.0 -0.1901 0.3491
0.95 126.0 0.2939 0.4035
0.95 138.0 0.4807 0.3866
0.95 150.0 0.5865 0.3034
0.95 162.0 0.7531 0.3297
0.95 174.0 -0.2429 0.3021
0.95 186.0 -0.039 0.3586
0.95 198.0 0.2083 0.3632
0.95 210.0 0.1433 0.351
0.95 222.0 0.1545 0.4002
0.95 234.0 0.0732 0.4004