CLAS Physics Database

Measurement E151M216

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: 0.1308
Q2: 0.0171 GeV2
W: 1235.0 GeV
Ebeam: 1.3383 GeV
ε: 0.9489

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 246.0 -0.518 0.4949
0.55 258.0 -0.7845 0.3555
0.55 270.0 -0.2751 0.5142
0.55 282.0 -0.9755 0.325
0.65 234.0 2.5845 2.5845
0.65 246.0 -0.2064 0.4423
0.65 258.0 0.3271 0.4823
0.65 270.0 -0.7017 0.3308
0.75 150.0 -0.0524 0.656
0.75 162.0 -0.1354 0.6618
0.75 186.0 -0.0364 0.7302
0.75 198.0 0.9239 1.1173
0.75 234.0 -0.3381 0.3845
0.75 246.0 -0.0708 0.4445
0.75 258.0 0.9071 0.6064
0.75 270.0 -0.4304 0.487
0.85 138.0 -0.329 0.62
0.85 150.0 0.123 0.741
0.85 162.0 -0.0415 0.5673
0.85 174.0 -0.7454 0.409
0.85 186.0 -0.8645 0.3579
0.85 234.0 -0.3339 0.5552
0.85 246.0 1.0056 0.6987
0.85 258.0 -0.5843 0.4545
0.45 270.0 -0.2858 0.4649
0.55 246.0 -0.8294 0.3759
0.55 258.0 -0.1623 0.3479
0.55 270.0 -0.4579 0.3577
0.55 282.0 -0.9723 0.3963
0.65 246.0 -0.4429 0.3237
0.65 258.0 -0.0349 0.2871
0.65 270.0 -0.3793 0.3156
0.65 282.0 -1.316 0.3342
0.75 150.0 -0.1684 0.4505
0.75 162.0 -0.1485 0.3928
0.75 174.0 0.1066 0.4529
0.75 186.0 -0.7031 0.4484
0.75 198.0 -0.3324 0.4674
0.75 210.0 -0.228 0.4755
0.75 234.0 -0.2488 0.3819
0.75 246.0 0.0305 0.2932
0.75 258.0 -0.0664 0.2826
0.75 270.0 0.0536 0.3368
0.85 138.0 0.4433 0.4685
0.85 150.0 -0.6494 0.449
0.85 162.0 0.2363 0.3732
0.85 174.0 0.0737 0.4094
0.85 186.0 -0.932 0.3757
0.85 198.0 -0.081 0.4604
0.85 234.0 -0.3152 0.4079
0.85 246.0 -0.5444 0.3535
0.85 258.0 -0.0595 0.4528